Ergonomic Full Motion Keyboard Tray: The height adjustable keyboard tray is designed to provide a comfortable typing experience with its full motion feature. The keyboard drawer allows a height-adjustable range of 5.8 . The keyboard holder can rotate/swing 360 horizontally and tilt 43 vertically to your required position and can be pulled forward or backward. Find the perfect position for your typing height and the comfortable position for your arms. This helps to improve typing posture, reduce tension and fatigue, and make it easier for you to work for longer periods of time. Perfectly Sized to Free Up Space: The black keyboard tray for desk measures 25x9.13 inches and fits most keyboards and mice.