These are the JConcepts 1/10 scale Bar Codes Rear Buggy Tires. FEATURES: Molded inserts Alternating "Bar Code" design with Y side bars X-design interior carcass design for enhanced support Gold compound, ideal for indoor clay surfaces Will fit on 1/10 scale Buggy Rear Wheels INCLUDES: Two Bar Codes Buggy Tires Two White foam inserts SPECS:Inside Diameter: 2.2" (55mm) Outside Diameter: 3.2" (81mm) Width: 1.60" (40mm) REQUIRES: Tire glue - DTXR2000, DTXR2002