Spitfire Superwides Multiball Size: 58mmKEEPING THE UNDERGROUND LIT Fast, soft, and responsive, the Spitfire Superwide 80HD Wheels feature reformulated 80D performance urethane, mechanically bonded to a lightweight, injection molded inner core for true bearing seating and soother, more consistent speed wherever you need it. Features: Spitfire Superwide Shape 80HD Injection molded inner core Wheels sold in sets of FOUR Sizes 58mm, 60mm, and 62mm