Features 1、Durable Material: Made of premium plastic and steel materials, it has strong wear resistance, corrosion resistance, good performance and long service life. 2、With Machine Screws: Good processing makes the gear roll smoothly, with its own fixing screw holes, easy installation, simple operation, and machine screws are provided in the package. 3、Improve Performance: Small in size and light in weight, it can give full play to the best performance, improve the power and overall performance of the remote control car, and work closely together. 4、Applicable Models: The gears set has the ability to withstand high forces, giving your RC car a good drive performance. Fit for Axial SCX10 SCX10 II 90046 1/10 retrofit. 5、2 Pinion Gears: Provides two pinion gears with different numbers of teeth, allowing you to have more choices in the gear box ratio and making your RC car perform better. Item Type: RC Accessories Material: Plastic, steel Gross Weight: 46g / 1.6oz Gear T Number: 56T, 15T, 13T Large Gear Diameter: 47mm / 1.85in Large Gear Aperture: 5mm / 0.20in 13T Size: 12x12mm / 0.47x0.47in 15T Size: 13x12mm / 0.51x0.47in Motor Gear Aperture: 3.175mm / 0.1in Applications: For Axial SCX10 SCX10 II 90046 1/10 Retrofit Package List 1 x Gear Box 56T Large Gear 1 x 13T Motor Gear 1 x 15T Motor Gear 2 x Spacers 2 x Accessories 4 x Machine Screw