With the Gmeinder 15/18 field railway diesel locomotive in closed design, a wagon with a transport box made of real wood, and a low-sided wagon. The tracks and the battery box are designed for 2 LR6/AA batteries (not included) and feature a switch (Forward/Reverse/Stop). The field railway tracks include an integrated metal insert to increase the pressure of the wheels on the rails. This ensures secure contact and high traction for a smooth ride. The track oval requires a space of approximately 375 x 250 mm. To operate the railway, two 1.5 V Mignon batteries LR6/AA are needed (not included) or a power supply with 3 V direct current. Since the locomotives have minimal power consumption, the batteries or rechargeable batteries last a long time.