HIGH PERFORMANCE: skateboard wheels are made by 82A polyurethane material. The size of wheel is 70mm (diameter) x 51mm (width)-Set of 4; The size & hardness of pulley are perfect for an all-around longboard, cruising, carving, slashing and sliding.IDEAS of DESIGN: The pattern on wheels gather ideas from Ninjas' Shurikens, which symbolizes flexibility, light weight and smooth riding on the street or in skate park.EXCELLENT SLIP RESISTANCE: As professional street wheels for longboards and cruisers, the design of frosted surface provide excellent ability of obstacle surmounting and adaptability of exploration.COMFY SMOOTH + STRONG GRIP+ FAST SPEED = As pro longboard wheels, it gives riders a really good control of skateboard, and it works perfectly with different skateboard trucks and skateboard bearings.100% Band new and high quality.High Wear-resistant and excellent durability.Colour:blackMaterial:PUPackage Contents:1 x skateboard pulleyOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.