Adjustable Slide-out Keyboard Tray?This ergonomic keyboard tray is height adjustable, 360° horizontally rotated/swiveling and 43°vertically tilted to your required position, pull it backward or forward. Note: The adjustable keyboard tray gravity self-locking setting prevents accidental pushing and pulling, and can be pushed and pulled smoothly by gently lifting it. ?Compatible with Different Types of Desk?Due to its special mechanical design, this keyboard under desk pull out tray also fits desks with beams. The under desk keyboard tray is compatible with desktops made of wood, MDF, or other materials with similar characteristics (plastic, stone, glass, etc., are not compatible). NOTE: Please make sure your desktop thickness is at least 0.71 inches. ?Spacious & Functional Design? The 28.3” x 10.2” keyboard tray offers ample space for your keyboard and mouse, with a smooth carbon fiber texture. It can also hold a small laptop, iPad, or other devices—helping keep your workspace organized. Note: Check compatibility before purchase. The mounting bracket depth is 17.8”, and your desk should be at least 20 x 39.5 x 29.1 inches (DLH). Ensure enough legroom and that it won’t interfere with desk motors. ?Equipped With Lip for Wrist Rest?The keyboard tray under desk features a lip supporting your wrist and preventing your keyboard from sliding down when the keyboard is tilted. ?Stable Mechanism & Solid Material?This keyboard drawer is designed with a stable mechanical structure, made of durable and solid material. Easy to assemble. The keyboard extender for desk will be a great gift idea for Christmas, New Year, etc