These are the Chrome Blast Wheel by HPI Racing. Fits the HPI Savage, Duratrax Warhead, Traxxas T-Maxx and Revo. FEATURES: Plastic Construction Chrome in Color INCLUDES: (2) Wheels REQUIRES: Installation of Tires and Wheels Tire Glue DTXR2000, DTXR2002 SPECS: Diameter: 4.53" (115mm) Width: 2.76" (70mm) Hex: 17mm EEW 8/9/06 ir/jxs