YOGOGO PU Skateboard Wheels Double Locker Skateboard Wheel Hardness SHR - 100A Coefficient of Restitution 75% 52mm x 30mm 4 PCS Material: High resilient PU. Hardness: SHR-102A. 70% rebound. Fine workmanship and beautiful outlook. Pattern: As shown in the picture. Dimension: Approx. 52 x 30mm/2.0 x 1.18". Weight: Approx. 320g. 100% Brand new. Suitable for rough grounds such as asphalt road, half-pipe, etc.