Avoid repetitive stress injuries with the the Humanscale Keyboard Tray. This product improves your sitting posture and prevents pain caused by regular keyboards. This ergonomic keyboard tray comes with a clip on mouse platform that attaches securely to your desk, allowing you to adjust the platform to the perfect height, depth, and lateral position. The Humanscale Keyboard Tray works for right handed and left handed users while protecting you against neck pain, back pain, and carpal tunnel syndr