10pcs 2/3mm Plastic Gear Accessories For DIY Model Toys Motor Shaft Gear

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Features:Teeth quantity: 20/30/36/44(bore diameter: 3mm) OptionalModulus: 0.5Height: 4mmBore diameter: 2mm(20T/30T/36T)/ 3mm(44T)Diameter=(Teeth quantity+2)x0.5(mm)Best used for accessories of Model toy, Motor shaft gearPackage included:10 x Gears


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