These are the HPI Mounted Super Low Tread Tires on Matte Chrome Wheels. Fits 1/10 scale on-road cars such as the HPI Nitro RS4 3, Sprint, Sprint 2, Pro 4, R40, Dash and many more Double Deuce 5-spoke chrome wheels Super low profile treaded tires and oversized wheels are recommended for use with bodies designed for large wheels and tires such as the Chrysler 300C SRT8 , HPIC1720 Four HPI Mounted Super Low Tread Tires and inner foam on Matte Chrome Wheels, four washers with 4mm inner diameter hole Installing on vehicle Outer Diameter: 2.9" (75mm) Width: 1.1" (29mm) Hex Size: 12mm jxs 9/23/08 ir/jxs &