Save desk space and improve ergonomics with the Mount-It! MI-7149 Under Desk Keyboard Platform with Mouse Tray & Wrist Support in black. Adjust the height, tilt, and swivel to find a comfortable, neutral working position and improve your posture. A separate, pull-out mouse tray can be positioned to the left or right of the keyboard tray, and both trays have integrated soft gel wrist rests. When not in use, you can stow it away under your desk.