This is a set of optional Split Spoke 3.8" Chrome Wheels w/17mm Hub Size for the Traxxas Revo 3.3, and the E-and T-Maxx. **Must be used with the 17mm Splined Wheel Hubs, TRAC6333.** FEATURES: Ten spoke chrome plated plastic construction, spokes are in groups of two Fits front or rear of vehicle INCLUDES: Two optional Traxxas Split Spoke 3.8" Chrome Wheels w/17mm Hub Size REQUIRES: Gluing tire to wheels with tire glue, can use DTXR2000, DTXR2002. SPECS: Diameter: 3.8" (96.5mm) Width: 2.7" (70mm) Hub Size: 17mm