Tamiya 70222 - Friction Power Unit 田宮STEM系列電動機械系列 雙星孖星  [70222]

This might be a friction energy product, which can be used to power Educational Construction models along with other creations. Spinning the drive wheel rotates the flywheel in the machine, which stores power and feeds it away through the shaft, on crank tires.

• Dimensions = length: 65mm, width (excluding shaft): 40mm, height: 50mm.
• Can be utilized aided by the considerable array of separately-sold Educational Construction Series items such as universal dishes, hands, wheels, songs and much more!
• Product features a clear ABS case.
• Gear ratios = 37.8:1 and 44.1:1
• Features a front roller - simply by using kit-included crank tires or suitable separately sold rear tires like those in Item 70193 Slim Tire Set (36mm, 55mm Diameter), the machine it self becomes a moving automobile.