We provide gear box DIY kit which is suitable for robot car and it for student made by themselves , in order to make children creative and intelligence.
Those kit can be added different control board on it .Such as :sound control / light control / IR sensor control / RF control on it . Power source : by battery / solar / wind generator
Size : 45.1x42x22.8mm
Weight : 31g
Speed rate : 1:120
Motor type : HL/D130-15158
Shaft : 2.0mm