Bones 54mm SPF P5 Caballero Bats Skateboard Wheels White • Bones SPF Caballero Pro skateboard wheels• 54mm• 31mm wide• 84b / 104a hard skateboard wheels• SPF (Skatepark Formula) high quality urethane specifically formulated to resist flatspotting on slick or smooth surfaces while maintaining a higher rebound for a quicker response and a faster roll.• P5 sidecut shape - Lighter weight, less side drag, high resistance to flatspots, graphic protection• White urethane• Set of Four More from Bones at Slam City Skates More Skateboard Wheels Bones 54mm SPF P5 Caballero Bats Skateboard Wheels White