Package Dimensions:6 x 4 x 2 cm 1. Applicable Model: The 0.6M pinion motor gear set is applicable for SCX10 TRX4, for 1/8 1/10 Crawler, please check the model before ordering. 2. Drive: Good machining, make its rolling pinion reduce roughness and noise, run more smoothly. 3. 3.175mm Hole: The RC car pinion gear have a 3.175mm bore is suited for 3.175mm shaft, ideal upgrade pinion gear for better performance. 4. Durable Material: Made of high strength aluminum alloy, which is wear resistant, anti impact, high hardness, solid structure and durable. 5. Solid Design: Designed with solid construction for long lasting performance, not easily deform or break, provide driving experience. Specification: Item Type: 0.6M Pinion Gear Set Material: Aluminum alloy Modulus: 0.6M Aperture: Approx. 3.175mm/0.13in Application: Applicable for 1/8 1/10 Crawler Fits for SCX10, TRX4 PackageList: 1 xPinion Gear 1 x Screw Applicable Model: The 0.6M pinion motor gear set is applicable for SCX10 TRX4, for 1/8 1/10 Crawler, please check the model before ordering. Drive: Good machining, make its rolling pinion reduce roughness and noise, run more smoothly. Durable Material: Made of high strength aluminum alloy, which is wear resistant, anti impact, high hardness, solid structure and durable. 3.175mm Hole: The RC car pinion gear have a 3.175mm bore is suited for 3.175mm shaft, ideal upgrade pinion gear for better performance. Solid Design: Designed with solid construction for long lasting performance, not easily deform or break, provide driving experience. See more product details Applicable Model: The 0.6M pinion motor gear set is applicable for SCX10 TRX4, for 1/8 1/10 Crawler, please check the model before ordering. Drive: Good machining, make its rolling pinion reduce roughness and noise, run more smoothly. Durable Material: Made of high strength aluminum alloy, which is wear resistant, anti impact, high hardness, solid structure and durable. 3.175mm Hole: The RC car pinion gear have a 3.175mm bore is suited for 3.175mm shaft, ideal upgrade pinion gear for better performance. Solid Design: Designed with solid construction for long lasting performance, not easily deform or break, provide driving experience.