This is an optional Golden Horizons 12mm Hex Wheel Hub Set for the Traxxas Jato, Stampede, Stampede VXL, Rustler and Rustler VXL.FEATURES: Aluminum construction, silver in color Replaces stock plastic hexesINCLUDES: Four 12mm Hex Wheel HubsREQUIRES: Four 2.5mm x 12mm axle pins-salvage from kit or order TRAC4055SPECS: Hex size: 12mm Thickness: 0.24" (6mm)COMMENTS: Also available in Blue, GHHC2141, Purple GHHC2142 and Green GHHC2143.Golden HorizonsPart GHH02144