The light railway tracks contain an integrated metal insert to increase the contact pressure of the wheels on the rails. This ensures safe contact and high pulling force for smooth travel. The track oval has a space requirement of approx. 375 x 250 mm. To operate the railway, two 1.5 V AA batteries LR6/AA are required (not included) or a power supply unit with 3 V DC voltage. Since the locomotives have minimal power consumption, the batteries last a very long time."