Spitfire Formula 4 Radials White / Red / Gold Skateboard Wheels - 54mm 101a (Set of 4) One (1) set of 54mm Spitfire Wheels Formula Four Radial Shape White / Red / Gold Skateboard Wheels - 101a; includes four (4) wheels Diameter: 54mm Durometer: 101a Color: White / Red / Gold 100% guaranteed authentic