Versátil juego de engranajes de plástico de 26 piezas para personalizar kits de modelos de automóviles hágalo usted mismo juguete
Worm gears: 662A and 682A are used in propeller and gear slots, motor transfer, etc.! The bevel gear is the transmission, the 2A bushing is the axle and the motor fixed bushing, also known as the limiter!