This is a set of TAMIYA M-chassis wheels designed for the TAMIYA MINI COOPERR and will work on the HPI mini super radials(HPIC4530) or TAMC5568 radials. INCLUDES: (2) grey plastic 8-spoke mini cooper wheels (2) 4mm flanged locknut . SPECS: Tire diameter 1 1/2" Rim diameter 1 5/8" Width 1" JAL 11/9/95