News
New Arrivals
Announcements
Blog
My Account
Ordering from Us
Contact Us
Wishlists
choose a scale to shop in
TT Scale
Show all Scale Products
Z Scale
1/220
N Scale
1/160
TT Scale
1/120
HO Scale
1/87
O Scale
1/45
G Scale
1/22.5
1-Gauge
1/32
HOe Narrow Gauge
HOm Narrow Gauge
Om Narrow Gauge
Empty ($0.00)
USD
USD
CDN
advanced search
top pages
New Product Arrivals
Check out the latest products to arrive in our store - always in-stock and ready to ship!
Product Announcements
Find all the recent new item announcements from the top manufacturers here.
Sale & Clearance Products
Great discounts & clear-outs!
Pre-Owned & Collectibles
High Quality 2nd Hand/Used Products
Latest News & Updates
Stay up to date on sales, new products and everything else.
ERH Photo Gallery
Layouts & Shows
ERH Blog
trains
for Marklin AC
AC Steam Locomotives
AC Electric Locomotives
AC Diesel Locomotives
AC Railcars
AC Train Sets
Marklin Starter Sets
Marklin My World
for DC 2-Rail
Steam Locomotives
Electric Locomotives
Diesel Locomotives
Railcars
Train Sets
Starter Sets
Rolling Stock
(for AC and DC)
Freight Cars
Passenger Cars
track
Straight and Curved Track
Turnouts
Special Track (function etc)
Roadbed & Ballast
Signals
Catenary
digital
Locomotive Decoders
Command Stations and Expansion
Function/Stationary Decoders
Transformers
Digital Accessories
scenery
Static Grass & Applicators
Grass Tufts & Strips
Grass & Foliage Mats
Flock & Scatter Material
Trees
Bushes & Detail Plants
Rock and Gravel
Water
Walls and Decor Sheets
Landscape Forming
Roads and Streets
Layouts & Layout Kits
structures
Stations and Platforms
Railway Buildings
Industry (factories etc)
Commerce (shops etc)
Churches and Landmarks
Farm and Country Buildings
Town and Village Buildings
City Buildings
Tunnels and Bridges
Circus
Military
details
Lights
Figures and Animals
Automobiles
Military Figures
Trucks Buses and Misc Vehicles
Military Vehicles
Scenes and Dioramas
Backgrounds
Scenery Details
Freight Loads
Ships and Boats
Faller Car System
Viessmann CarMotion
books/catalogs
Current Catalogs
Past Catalogs
Books
Video and DVDs
Magazines
more products
Electronics
Art Prints
Tools and Supplies
Marklin Tinplate and Special Issues
Glue and Paint
Parts and Details
Misc. Accessories
Schuco Collectibles
Gift Certificates
Pre-Owned Trains & Collectibles
shop by
price:
(Show all)
$0 - 50
(3277 items)
brand:
Marklin
(7 items)
Schuco
(59 items)
Brawa
(165 items)
Roco
(38 items)
Piko
(14 items)
Kibri
(4 items)
Vollmer
(5 items)
Faller
(334 items)
Stangel
(2 items)
Preiser
(85 items)
Viessmann
(215 items)
Busch
(443 items)
Sommerfeldt
(42 items)
Heki
(462 items)
Artitec
(129 items)
Lenz
(18 items)
Noch
(615 items)
Silhouette Silflor MiniNatur
(406 items)
Brekina
(1 item)
ESU
(65 items)
MBZ Thomas Oswald
(166 items)
Other Manufacturers
(2 items)
scale:
(Show all)
TT
(2044 items)
Era:
Era I
(2 items)
Era II
(6 items)
Era III
(2 items)
Country:
Germany
(11 items)
Category:
select one
Stations and Platforms (2 items)
Lights (93 items)
Locomotive Decoders (6 items)
Electronics (285 items)
Current Catalogs (11 items)
Command Stations and Expansion (1 item)
Past Catalogs (1 item)
Figures and Animals (192 items)
Railway Buildings (10 items)
Function/Stationary Decoders (2 items)
Industry (factories etc) (7 items)
Automobiles (21 items)
Books (7 items)
Special Track (function etc) (8 items)
Military Figures (9 items)
Trucks Buses and Misc Vehicles (37 items)
Tools and Supplies (83 items)
Commerce (shops etc) (2 items)
Military Vehicles (16 items)
Roadbed & Ballast (43 items)
Churches and Landmarks (1 item)
Transformers (1 item)
Digital Accessories (76 items)
Scenes and Dioramas (12 items)
Rail Centre (127 items)
Static Grass & Applicators (111 items)
Trains (7 items)
Backgrounds (12 items)
Scenery Details (48 items)
Passenger Cars (2 items)
Freight Cars (2 items)
Signals (10 items)
Grass Tufts & Strips (44 items)
Grass & Foliage Mats (185 items)
Flock & Scatter Material (199 items)
Trees (329 items)
Farm and Country Buildings (23 items)
Town and Village Buildings (3 items)
City Buildings (1 item)
Tunnels and Bridges (14 items)
Freight Loads (2 items)
Military (2 items)
Bushes & Detail Plants (84 items)
Catenary (54 items)
Rock and Gravel (52 items)
Water (17 items)
Books and Catalogs (1 item)
Walls and Decor Sheets (33 items)
Landscape Forming (64 items)
Glue and Paint (157 items)
Roads and Streets (19 items)
Parts and Details (29 items)
Misc. Accessories (85 items)
Faller Car System (1 item)
Schuco Collectibles (59 items)
our brands
our brands
Marklin
Trix
Brawa
Roco
Fleischmann
Bemo
Piko
LGB
KM1
Lenz
Faller
Pola
Vollmer
Kibri
Artitec
Stangel
MBZ
Preiser
Noch
Silhouette
Heki
Busch
Brekina
ESU
Viessmann
Sommerfeldt
Art Prints
Schuco
Pre-Owned & Collectible
TT Scale
Advanced Search Options:
Price Range $0 to $50
Products 681 to 780 of 3277
Show 100
10
25
50
100
< Previous
4
5
6
7
8
9
10
Next >
Sort by Title Z-A
In-Stock Products First
Sort by Stock 0-9
Sort by Stock 9-0
Sort by Price $-$$$
Sort by Price $$$-$
Sort by Title A-Z
Sort by Title Z-A
SILHOUETTE SILFLOR MININATUR 250-48
Shrubbery Mat, Red
Scale:
TT, HO, O, 1
our price
$9.95
USA
in stock
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 250-70
Shrubbery Mat, Orange
Scale:
TT, HO, O, 1
our price
$5.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 250-50
Shrubbery Mat, Orange
Scale:
TT, HO, O, 1
our price
$9.95
USA
in stock
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 250-44
Shrubbery Mat, Late Fall
Scale:
TT, HO, O, 1
our price
$9.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 250-64
Shrubbery Mat, Late Fall
Scale:
TT, HO, O, 1
our price
$5.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 250-63
Shrubbery Mat, Early Fall
Scale:
TT, HO, O, 1
our price
$5.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 250-43
Shrubbery Mat, Early Fall
Scale:
TT, HO, O, 1
our price
$9.95
USA
in stock
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 250-47
Shrubbery Mat, Brown
Scale:
TT, HO, O, 1
our price
$9.95
USA
in stock
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 250-67
Shrubbery Mat, Brown
Scale:
TT, HO, O, 1
our price
$5.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 250-72
Shrubbery Mat, Birch
Scale:
TT, HO, O, 1
our price
$5.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 250-52
Shrubbery Mat, Birch
Scale:
TT, HO, O, 1
our price
$9.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
ARTITEC 7120016
Shower and toilet block campsite
Scale:
TT
our price
$13.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 717-22S
Short tufts, Summer 15x8 cm
Scale:
TT, HO
our price
$6.95
USA
in stock
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 718-22S
Short tufts, Summer 15x8 cm
Scale:
TT, HO
our price
$6.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 718-21S
Short tufts, Spring 15x8 cm
Scale:
TT, HO
our price
$6.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 717-21S
Short tufts, Spring 15x8 cm
Scale:
TT, HO
our price
$6.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 717-24S
Short tufts, Late Fall 15x8 cm
Scale:
TT, HO
our price
$6.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 718-24S
Short tufts, Late Fall 15x8 cm
Scale:
TT, HO
our price
$6.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 718-23S
Short tufts, Early Fall 15x8 cm
Scale:
TT, HO
our price
$6.95
USA
in stock
ADD TO CART
more details
SILHOUETTE SILFLOR MININATUR 717-23S
Short tufts, Early Fall 15x8 cm
Scale:
TT, HO
our price
$6.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
BUSCH 3511
Short tufts spring
Scale:
HO, N, Z, O, G, TT
our price
$13.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
BUSCH 3513
Short tufts late summer
Scale:
HO, N, Z, O, G, TT
our price
$13.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
BUSCH 3514
Short tufts fall
Scale:
HO, N, Z, O, G, TT
our price
$13.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
PREISER 75011
Shopping Promenade 1:120
Scale:
TT
our price
$16.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
ARTITEC 312.022
Shoeing stock with farrier
Scale:
TT
our price
$26.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
NOCH 45750
Shepherd and Sheep, 2 figures + 9 animals
Scale:
TT
our price
$14.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
PREISER 75020
Shepard w/sheep and dog 1:120
Scale:
TT
our price
$15.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
BUSCH 8777
Shelter
Scale:
TT
our price
$28.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
NOCH 45748
Sheep and Shepherd
Scale:
TT
our price
$14.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
MBZ THOMAS OSWALD 12086
Shed Hofsteinach
Scale:
TT
our price
$28.42
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
MBZ THOMAS OSWALD 12051
Shed
Scale:
TT
our price
$29.19
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
ON SALE
SCHUCO 450380300
Set with 3 motorbikes, Simson Schwalbe, Vespa PX, Zündapp KS 50 WC (Edition 1:43)
Scale:
All
sale price
$26.30
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
PREISER 75014
Set of small animals 1:120
Scale:
TT
our price
$18.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
FALLER 170539
Set of saw blades for modeller’s knife
Scale:
HO, TT, N, Z
our price
$13.95
USA
in stock
ADD TO CART
more details
FALLER 170525
Set of needle files
Scale:
HO, TT, N, Z
our price
$11.95
USA
in stock
ADD TO CART
more details
discontinued
ARTITEC 70.000
Set of 12 powders of various colors, weathering powder
Scale:
All
our price
$19.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
VIESSMANN 5268
ServoControl
Scale:
All
our price
$29.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
Discontinued
ESU 51804
Servo Motor, precision miniature servo, operated by a micro controller with plastic gear drive, including mounting kit
Scale:
All
our price
$18.95
USA
in stock
ADD TO CART
more details
Discontinued
ESU 51805
Servo Motor, precision miniature servo, operated by a micro controller with metal gear drive, including mounting kit
Scale:
All
our price
$23.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
Discontinued
ESU 51810
Servo extension cable: 3-pole J/R plug on J/R / Futaba socket, length: 75cm
Scale:
All
our price
$5.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
FALLER 180726
Servo
Scale:
HO, TT, N
our price
$16.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
HEKI 3110
Seefolie 35*80cm
Scale:
All
our price
$16.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
PREISER 75041
Seated Travellers 1:120
Scale:
TT
our price
$29.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
PREISER 75037
Seated Travellers 1:120
Scale:
TT
our price
$16.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
Discontinued
NOCH 45532
Seated People
Scale:
TT
our price
$13.50
USA
in stock
ADD TO CART
more details
PREISER 75101
Seated Passengers (unpainted) 1:120
Scale:
TT
our price
$16.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
PREISER 75043
Seated Passengers 1:120
Scale:
TT
our price
$16.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
FALLER 170559
Screwdriver set
Scale:
HO, TT, N, Z
our price
$23.95
USA
in stock
ADD TO CART
more details
BRAWA 3094
Screw Contact Terminal Strip
Scale:
HO, N, 1, O, TT
our price
$5.95
USA
in stock
ADD TO CART
more details
ROCO 40322
Screw bulbs for 40320 light kit 12V/60mA 5 per package
Scale:
All
our price
$11.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
ON SALE
SCHUCO 450987400
Schuco Roadster White-Willi
Scale:
All
sale price
$19.12
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
ON SALE
SCHUCO 450987600
Schuco Roadster Red-Carlo
Scale:
All
sale price
$19.12
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
ON SALE
SCHUCO 450987500
Schuco Roadster Green-Gary
Scale:
All
sale price
$19.12
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
ON SALE
SCHUCO 450987700
Schuco Roadster Blue-Paul
Scale:
All
sale price
$19.12
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
BUSCH 7189
Scenery starter kit 'Basic'
Scale:
HO, TT, N
our price
$23.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
BUSCH 7193
Scenery Plaster - Large Package
Scale:
All
our price
$13.95
USA
in stock
ADD TO CART
more details
Discontinued
BUSCH 7590
Scenery motar rocks (grey)
Scale:
HO, N, Z, 1, G, TT
our price
$9.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
BUSCH 7192
Scenery Mortar
Scale:
HO, N, Z, 1, G, TT
our price
$8.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
BUSCH 7195
Scenery Mortar
Scale:
HO, N, Z, 1, G, TT
our price
$8.95
USA
in stock
ADD TO CART
more details
NOCH 61133
Scenery Glue, 125 ml
Scale:
All
our price
$11.95
USA
in stock
ADD TO CART
more details
Discontinued
BUSCH 7174
Scenery Crepe Paper
Scale:
HO, N, Z, 1, G, TT
our price
$3.11
USA
in stock
ADD TO CART
more details
BUSCH 7190
Scenery construction set
Scale:
HO, N, Z, 1, G, TT
our price
$25.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
BUSCH 7593
Scenery Adhesive
Scale:
All
our price
$9.95
USA
in stock
ADD TO CART
more details
FALLER 170751
Scatter material, track ballast, stone grey, 650 g
Scale:
HO, TT, N
our price
$18.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
FALLER 170721
Scatter material, track ballast, stone grey, 150 g
Scale:
HO, TT, N
our price
$5.95
USA
in stock
ADD TO CART
more details
FALLER 170722
Scatter material, track ballast, dark brown, 100 g
Scale:
HO, TT, N, Z
our price
$5.95
USA
in stock
ADD TO CART
more details
FALLER 170702
Scatter material, spring green, 30 g
Scale:
HO, TT, N, Z
our price
$2.50
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
FALLER 170705
Scatter material, sandbrown, 30 g
Scale:
HO, TT, N, Z
our price
$2.50
USA
in stock
ADD TO CART
more details
FALLER 170819
Scatter material, Powder, Loess soil, umber, 240 g
Scale:
HO, TT, N, Z
our price
$9.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
FALLER 170818
Scatter material, Powder, Clay soil, reddish, 240 g
Scale:
HO, TT, N, Z
our price
$9.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
FALLER 170820
Scatter material, Powder, Clay soil, ochre, 240 g
Scale:
HO, TT, N, Z
our price
$9.95
USA
in stock
ADD TO CART
more details
FALLER 170704
Scatter material, ploughed field, 30 g
Scale:
HO, TT, N, Z
our price
$2.50
USA
in stock
ADD TO CART
more details
FALLER 170703
Scatter material, forest green, 30 g
Scale:
HO, TT, N, Z
our price
$2.50
USA
in stock
ADD TO CART
more details
FALLER 170710
Scatter material, flowery meadow, 30 g
Scale:
HO, TT, N, Z
our price
$2.50
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
FALLER 170728
Scatter material, Farm road, 85 g
Scale:
HO, TT, N, Z
our price
$4.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
FALLER 170723
Scatter material, coal, black, 140 g
Scale:
HO, TT, N, Z
our price
$5.95
USA
in stock
ADD TO CART
more details
FALLER 170706
Scatter material, basalt, 30 g
Scale:
HO, TT, N, Z
our price
$2.50
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
BUSCH 7050
Scatter Material Set
Scale:
All
our price
$15.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
FALLER 170821
Scatter material Sand soil, 240 g
Scale:
HO, TT, N, Z
our price
$9.95
USA
in stock
ADD TO CART
more details
FALLER 170304
Scatter material River stones, beige, 650 g
Scale:
HO, TT, N, Z
our price
$13.95
USA
in stock
ADD TO CART
more details
FALLER 170303
Scatter material Quarrystones, granit, 650 g
Scale:
HO, TT, N, Z
our price
$13.95
USA
in stock
ADD TO CART
more details
FALLER 170305
Scatter material Footpath/Verge, 300 g
Scale:
HO, TT, N, Z
our price
$13.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
FALLER 170301
Scatter material Coal, black, 650 g
Scale:
HO, TT, N, Z
our price
$18.95
USA
in stock
ADD TO CART
more details
FALLER 170302
Scatter material Ballast, beige, 650 g
Scale:
HO, TT, N, Z
our price
$17.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
FALLER 170720
Scatter material Ballast, beige, 140 g
Scale:
HO, TT, N, Z
our price
$5.95
USA
in stock
ADD TO CART
more details
BUSCH 7051
Scatter material
Scale:
HO, N, Z, 1, G, TT
our price
$2.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
BUSCH 7052
Scatter material
Scale:
HO, N, Z, 1, G, TT
our price
$2.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
BUSCH 7053
Scatter material
Scale:
HO, N, Z, 1, G, TT
our price
$2.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
BUSCH 7054
Scatter material
Scale:
HO, N, Z, 1, G, TT
our price
$2.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
BUSCH 7055
Scatter material
Scale:
HO, N, Z, 1, G, TT
our price
$2.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
BUSCH 7056
Scatter material
Scale:
HO, N, Z, 1, G, TT
our price
$2.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
BUSCH 7057
Scatter material
Scale:
HO, N, Z, 1, G, TT
our price
$2.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
Discontinued
BUSCH 7301
Scatter material
Scale:
HO, N, Z, 1, G, TT
our price
$4.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
Discontinued
BUSCH 7302
Scatter material
Scale:
HO, N, Z, 1, G, TT
our price
$4.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
NOCH 08364
Scatter Grass, medium green
Scale:
HO, N, Z, O, TT
our price
$3.95
USA
in stock
ADD TO CART
more details
NOCH 08363
Scatter Grass, Light Green
Scale:
All
our price
$3.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
NOCH 08323
Scatter Grass, brown 2.5 mm
Scale:
All
our price
$3.95
USA
in stock
ADD TO CART
more details
NOCH 08362
Scatter Grass, beige
Scale:
All
our price
$3.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
NOCH 50190
Scatter Grass Summer Meadow, 100 g
Scale:
All
our price
$12.95
USA
Temporarily out of stock
(Available to order)
ADD TO CART
more details
NOCH 50210
Scatter Grass Spring Meadow, 100 g
Scale:
All
our price
$12.95
USA
in stock
ADD TO CART
more details
Products 681 to 780 of 3277
Show 100
10
25
50
100
< Previous
4
5
6
7
8
9
10
Next >
Sort by Title Z-A
In-Stock Products First
Sort by Stock 0-9
Sort by Stock 9-0
Sort by Price $-$$$
Sort by Price $$$-$
Sort by Title A-Z
Sort by Title Z-A