1、Easy Installation: Skateboard wheel set, adopts skateboard specific bearings, flash cores with washers and spacers, easy to install and saaemble. Wheel size is 52mm x 32mm. 2、PU Wheels: Whether you're using a longboard or a regular skateboard, the 78A high rebound PU wheels with skateboard pro bearings are the best of both worlds. 3、Perfect for: These wheels are designed for longboards and cruisers, and the hardness of the 78A lets you experience a slippy glide! Perfect for cruising and downhill skating! 4、Safe Operation: These replacement wheels have good grip around the edges to ensure fast and glossy glide, helping to safely and steadily descend downhill. 5、Applicable Ground: The wheels can be used on all grounds, ramps, sidewalks, concrete or asphalt roads, etc., not easy to wear or deform, are good accessories. Item Type: Skateboard Wheels Material: PU Wheel Size: Approx. 65x43mm / 2.6x1.7in Hardness: 78A 4 x Skateboard Wheels