[Size] Free skateboard wheels with bearings are 52mm 98A polyurethane material. The wheel size is 52mm (diameter) x 30mm (width). The bearing is 22mm x 8mm and has been installed on the wheel. [Applicable] The 52mm wheels are suitable for beginners playing shorter longboards or cruising. It can be used on any ground, slope, sidewalk, concrete or asphalt. [Excellent quality] 98A hardness PU material is perfectly durable, stable and quiet. The slide is fast and provides good grip. [Reliable good helper] The high-quality wheels use high-quality bearings to help you successfully complete street tricks. Due to its light weight, it is also favored by most freestyle skaters. This wheel comes with designed packaging that is suitable as a gift for family and friends. Application: Standard skateboard, long skateboard, conventional skateboard, cruiser skateboard, Penny Board, other trolley or suitcase Color: White Material: PU + bearings Size: 52x30mm Package Contents: 4 x skateboard wheels 8 x black circle bearings 4 x sleeves Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.