drawer rails, Sliding Keyboard Drawer Keyboard Slide Tray 250mm/10inch 300mm/12inch Ball Bearing 3-Folds Full Extension Drawer Slides Side MountDrawer Runners Height Adjustable Under Desk Computer Sli

3 folds structure drawer slides help to open or close the keyboard drawer completely, to maximize the use of space and reach the most inside stuff. Made of high-quality cold-rolled steel, strong and durable, not easy to break, with longer service life. When in use, you can adjust the height of the slide according to your needs, providing more selectivity, and strong stability, not easy to shake. Built in double row solid steel ball, smooth and accurate sliding, move quietly and stable. Rubber brake design reduces damage caused by drawer switch collision, silencers shock absorption, increase service life. If you have any questions, please do not hesitate to contact us. Thank you for coming, wish you a happy life！