1Fit for some rough grounds such as asphalt road, marble/cement road or half-pipe, etc 2Made of high resilient PU, durable in use 3Fine workmanship and beautiful outlook, make you attracting 4Compact and delicate design 5Hardness SHR100A, 7075 % spring back, suitable for basic skateboarding These wheels are made of high resilient PU material to make the wheels more solid and durable. The HR-100A elasticity wide wheels fit for some rough grounds such as asphalt road, marble/cement road or half-pipe, etc. Features: Fit for some rough grounds such as asphalt road, marble/cement road or half-pipe, etc. Made of high resilient PU, durable in use. Fine workmanship and beautiful outlook, make you attracting. Compact and delicate design. Hardness SHR-100A, 70-75 % spring back, suitable for basic skateboarding. Specifications: Material: PU Size: 52 x 30 mm/2.04 x 1.18inch Resilience: 70-75% Suitable for basic skateboarding Color (Optional): Blue, White, Red, Yellow, Pink Package Includes: 4 x Skateboard Wheels Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.