Item Name: Robot Motor 082A For DIY Car 8-tooth Gear Plastic Gears 2mm Bore Motor Gears. Thickness5mm nominal, 5.1mm actual measurementNumber of teeth: 8 teethWeight: about 32gOuter diameter5mmModulus: 0.5Bore diameter: 1.95mm (tightly fitted 2mm shaft)Quantity: 500PCSPackage includes: 500 * gearNotes Due to manual measurement or shooting scenes, there may be some deviation or slight color difference. *Please make