1、Applicable Models: This motor pinion is suitable for Arrma 1/7 1/8 series RC cars, ideal replacement for old or damaged originals. 2、Anti Rust: Made of premium steel material, the surface of the gear is treated with anti rust, which has strong wear resistance, corrosion proof, good performance and long service life. 3、More Efficient Drivetrain: The more efficient drivetrain provides a smoother ride, making the 32T motor gear transmission smoother and more powerful. 4、Precise Machining: Precise machining, good machining makes the gears roll smoothly, with fixed screw holes, easy installation, simple operation, and machine screws are provided in the package. 5、Improved Gear Mesh: Provides improved gear mesh, great spares, the gears provide overdrive for the axles to make your RC car perform better.