Compucessory Underdesk Keyboard Drawers, 22-1/2"x11-3/4", Black Keyboard drawer features gel wrist rest and retractable mouse station. Keyboard tray extends and locks into position while in use. Retracts inside metal cabinet for storage. Conserves valuable work space by storing keyboard out of the way. Platform measures 22" x 11-3/4". Track length is 18". Keyboard drawer offers smooth and quiet ball-bearing suspension rails as well as screws to the underside of the desk. Designed for use with standard workstations. Mousing surface can be used to the left or right of the keyboard. Keyboard drawer is not height adjustable.