This is a pair of JConcepts Short Course Goose Bumps Tires and Wheels. Fits the rear of the E-Stampede/ E-Rustler Designed to allow even wear down to the tire body, once the initial pin is worn, a bar follows for best performance on aggresive surfaces Crisp tread pattern with precise separation for intense short course racing competition Precisely molded Force-1 inserts Tense wheels, plastic construction, black in color Super soft green compound firmness rating Two Goose Bumps Tires, Tense Wheels with Foam Inserts Installing on vehicle Diameter: 4.3" (110mm) Width: 1.9" (48mm) jml 03/01/11 ir/jxs &