Features 1、Made of high grade material steel, which is durable, solid and eco-friendly 2、Suitable for 1/8 RC cars motor with 5mm shaft 3、Hard anodizing and rust-proof treatment on the gear surface 4、M4 fixed screw holes for easy and convenient to install 5、With long service life, a perfect accessory for RC motors Features: 1. Made of high grade material steel, which is durable, solid and eco-friendly. 2. Suitable for 1/8 RC cars motor with 5mm shaft. 3. Hard anodizing and rust-proof treatment on the gear surface. 4. M4 fixed screw holes for easy and convenient to install. 5. With long service life, a perfect accessory for RC motors. Specifications: Material: 45 Steel Teeth: 17T, 18T, 19T, 20T, 21T Diametral Pitch: 32DP 17T size: 14 * 15mm / 0.55 * 0.6inch 18T size: 14 * 15.5mm / 0.55 * 0.61inch 19T size: 14 * 16.5mm / 0.55 * 0.65inch 20T size: 14 * 17mm / 0.55 * 0.67inch 21T size: 14 * 18mm / 0.55 * 0.71inch Suitable shaft diameter: 5mm / 0.2inch Weight: 59g Quantity: 5Pcs Package Include: 1 x 32DP 17T Motor Gear 1 x 32DP 18T Motor Gear 1 x 32DP 19T Motor Gear 1 x 32DP 20T Motor Gear 1 x 32DP 21T Motor Gear Package List