Wheel Train for 12V Electric Motor

Vía de vehículo, tren, placa de traviesa 2 x 8 con ranuras para cables Ladrillo inclinado invertido 45° 2 x 1 Placa 1 x 6 Placa 1 x 2 Vehicle Track, Train, Slotted Rail Curved Outside Vehicle Track, Train, Slotted Rail Curved Inside Train Track 12V Conducting Rail Curved [Cable Connection Holes] Valla de celosía 1 x 4 x 1 Placa 2 x 6 Placa 2 x 2 Ladrillo 1 x 2 Ladrillo 1 x 1