Item Name: Robot Motor For DIY car 102A Plastic Gear Motor Gear 10 teeth Gear 0.5 Modulus. Bore: 1.95mm (tightly fitted 2mm shaft)Modulus: 0.5Quantity: 500 piecesWeight: about 50gThickness: 5mmOuter diameter: about 5.7-5.8mm as measuredNumber of teeth: 10 teethPackage includes: 500 * gearNotes Due to manual measurement or shooting scenes, there may be some deviation or slight color difference. *Please make