二合一齿轮箱 模块 KNS7

品牌： VELLEMAN
简要描述: contains: motor, 2 set gears, metal shafts, gearbox and other accessories powered by: 2 x AA batteries (not included)
详细描述：

 

GEARBOX 2 IN 1

 

KNS7

GEARBOX 2 IN 1

二合一齿轮箱

FEATURES

• use the contents of this set to change the speed of your existing sets

SPECIFICATIONS

• contains: motor, 2 set gears, metal shafts, gearbox and other accessories
• powered by: 2 x AA batteries (not included)
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