Features: Material -- Made from durable polyurethane material, designed to provide good grip and speed in all hardnesses and has excellent durability. Size And Diameter -- 58mm/2.28 in diameter, 32mm/1.26inch in width, equipped with bearings and spacer. 82A Hardness -- With 82A hardness, offering grip, speed and durability. These long lasting artistic wheels are competition quality and formulated to roll smoothly while providing a fantastic grip on the rink floor. Highlights -- The inner and outer edges of the hub are oversized, which reduces the amount of urethane on the edges of the wheel. This makes it easy to perform stops and offers excellent response. The middle of the hub has room for more urethane, which offers grip, increases control, and improves ride. Package Included -- Pack of 8 wheels replacements and a wrench. Specifications: Item Type: Roller Skate Wheels Material: PU Color: Black Wheel, Black Hardness: 82A Inner Buckle: PP Bearing: High Speed608RS Applicable For: Double inline skating, skateboarding Resilience: 80% Size: About 58 x 32mm/2.28 x 1.26inch(Dia. x W) Package Includes: 8Pcs x Roller Skate Wheels 1Pc x Wrench Notes: Transition: 1cm=10mm=0.39inch 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement.