Fine quality alloy material, high strength, high hardness, not easy to deform.Wear resistance, strong bearing capacity and long service life.Simple installation, wide ranges of application.It can be used as a nice modification or replacement part of skateboard to improve the service life of skateboard.Outstanding use experience, help users better experience the fun of skateboard. High rebound, flexible steering.With Matching screws for installation.Colour: silverMaterial: aluminum alloyPackage Contents:1 * Skateboard base (without bracket)4 sets * 28mm screw + nut4 sets * 18mm screw + nutOnly the above package content, other products are not included.Note: Light shooting 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.