1、Applicable Models: This wheel hub set is applicable for Axial SCX10, for Traxxas, for HSP, for Redcat, for Tamiya, for HPI, with reasonable design, perfect match with your car. 2、Metal Material: Made of premium iron material, with unique design, has strong practicality, high wear and pressure resistance, strong and sturdy. 3、Strong Support: These iron wheel hubs provide strong support for your RC car, with high abrasion resistance, withstand hard roads and rough driving for a long time. 4、Increase Stability: The hubs reduce the gravity of the car, make them more stable, not afraid of any terrain, increase the stability of the tire, improve the performance of your RC car. 5、Upgraded Parts: The original plastic parts or damaged parts can be directly replaced for higher strength, these metal wheel hubs are easy to install and disassemble, reusable. Item Type: RC Car Wheel Hubs Material: Iron Hub Outer Diameter: Approx. 55mm/2.2in Hub Inner Diameter: Approx. 46mm/1.8in Hub Thickness: Approx. 26mm/1in Hex Driver: Approx. 12mm/0.5in Applicable Models: For Axial SCX10, for Traxxas, for HSP, for Redcat, for Tamiya, for HPI Specification: 1.9in (applicable tire size) 4 x RC Car Wheel Hubs 16 x Screws