Double-layer 0.5 Module Plastic Toothed Wheels Sector Reduction Gears RC Toy DIY

◽ Module:0.5 Module. ◽ These great tools are suitable for all kinds of DIY car, robot, model making accessories. ◽ Four-Wheel Drive Components: Gears / Bearings / Steel Axle. ◽ Model:Double Layer Gear.

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