Material, study and , can be used for a longer time.Skid pad - effectively reduces the damage caused by collisions.Screw hole-can adjusted the height to install. Mounts under your desk to your platform.If youre looking for a keyboard slide for a custom desk, or you are replacing a worn out keyboard an old desk, this one is easy to install, and has flexibility in the mounting height.Note: It is normal for the product to have a slight paint peeling.Note:Due to different production batches, the color , which does not affect the use.Colour:SilverMaterial:steelSize:35x3.50x1.2cmPackage Contents:1 x 35Key Desk Keyboard Drawer Rail KitOnly the above package content, other products are not included.Note: Light reflection 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.