High resilient PU infusion processing material, durable and wear-resistantPolyurethane wheels with ABCE - 9 bearing for smooth riding and high durabilitystandard cruiser wheel size, fit for most of the skateboardInclude 20 wheel hubs, make the wheel and holder connect closer and decrease the frictionColorful and cool appearance, make you attractive among the skateboardersHardness: 83A neutral hardnesscolour: black + redMaterial: PU + bearingssize: 60x45mmPackage Contents:20 x Skateboard WheelsOnly 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.