These are the optional AKA Rear Cyclone SC Black Wheels for use on the Front and Rear of the Associated SC10 4x4 Race Truck. FEATURES: Nylon construction Black in color INCLUDES: Two AKA Rear Cyclone SC Black Wheels REQUIRES: Tires Tire Glue DTXR2000, DTXR2002 SPECS: Diameter: 3" (76mm) Width: 1.6" (40mm) jxs 11/15/11 ir/jxs