This is the set of Traxxas 2.8" Mounted All Star Wheels and Tires. FEATURES: 2.8" All Star black chrome wheels Ribbed pattern Alias tires INCLUDES: Two 2.8" mounted rear tires, All Star chrome wheels and foam inserts for electric vehicles REQUIRES: Installation on vehicle SPECS: Outside diameter: 4.13" (105mm) Width: 2.04" (52mm) Inside diameter: 2.79" (71mm) Hex Size: 12mm COMMENTS: All Star Wheels available separately, TRAC5569 tlw 9/17/07