Features: 1Premium Steel: This RC gear is made of premium steel material so that it is strong, durable and has good performance and long service life. 2Rust Prevention Treated: The surface of the RC car gear has been treated with rust prevention. It has strong corrosion and wear resistance. 3Accurate Processing: The motor pinion is made of accurate processing. Good processing makes the gear roll smoothly. A more efficient drivetrain provides a smoother ride with smoother and more powerful transmission from the mid to mid gear shaft. 4Easy to Install: The package is equipped with screws and hex wrench. and with its own fixing screw hole, which is easy to install and operate. 5Improving Car Performance: This RC gears are good spare parts with improved gear mesh. The gear provides the axle with overspeed drive, so that your remote control vehicle has better performance. Item Type: RC Motor Pinion Gear Material: Steel Gross Weight: 18g/0.63oz Color: Black Inner Hole Diameter: 5mm/0.20in Product Diameter: 22mm/0.86in Package Included: 1 x RC Motor Pinion Gear 2 x Screws&nbsp 1 x Hex&nbspWrench