Saving Space: Under-desk keyboard tray measures 26.4 (W) x 11.8 (D) and supports up to 4.4 lbs. Keyboard tray can hold your keyboard, mouse, and other small accessories below the desktop surface to save space. Unique Design for L-Shaped Desks: Attach the keyboard tray to your workstation with 45 swivel C-clamps, Computer Drawer can use for L-shaped desks, electric standing desks and common office desks. (Suitable for tables with angles ranging from 90 to 180 ) Smooth Glide Motion: Easily slide tray in and out and enjoy ergonomic typing angles that relieve stress on your wrists and shoulders, under-desk keyboard tray features a smooth pull-out mechanism using our ball slide-way system, preventing it from accidentally sliding out when fully hidden. Easy Installation: Two Keyword trays are installed with brackets and screws, and the table can be clamped with c-clamp. No need to drill holes.