These are Goose Bumps 1/10 scale Rear Truck Tires by JCONCEPTS. FEATURES: Super soft green firmness compound, ideal for all track conditions Small round spike tread YOU WILL RECEIVE: Two 1/10 scale Goose Bump rear truck tires and two foam inserts SPECIFICATIONS: Inside Diameter: 2.4" (62mm) Outside Diameter: 3" (76.2mm) Width: 1.65" (42mm) REQUIREMENTS: Tire glue - DTXR2000, DTXR2002 1/10 scale rear truck wheels jxs 3/24/08 ir/jxs &