Feature:1. Steel Material: Pinion gears are made of high quality steel material, high strength, wear resistant, good performance and long service life.2. Easy to Install: The motor teeth have fixed screw holes for easy installation and operation, and M4 set screws are included in the package to make your installation and maintenance easier.3. Hard Anodized Surface: The surface of the pinion is hard anodized and rust resistant to ensure a satisfactory experience after installation.4. Withstand High Forces: With the ability to withstand high forces, your RC car has good driving performance. Can be used for 5mm shaft diameter motor, tight fit.5. Good Performance: Small size and light weight, these features can give full play to the best performance and improve the power and overall performance of the RC car.Specification:Item Type: 20T Pinion Gears for 1/10 RC CarMaterial: SteelColor: BlackWeight: Approx. 17g / 0.6ozNumber of Teeth: 20THole Diameter: Approx. 5mm / 0.2inModulus: Mod 1Product Size: Approx. Diameter. 22mm/0.9in, Thickness. 11mm/0.4inApplication: for LOSI 1/10 Lasernut U4 Tenacity off Road VehicleApplicable Models: for LOS03028, for LOS03027, for LOS03019Suitable: for 5mm/0.2in Shaft Diameter Motors.Package List:1 x 20T Motor Gear 2 x Set Screws 1 x Wrench Note:1. Please allow 13mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.