Premium keyboard tray features adjustable height and tilt as well as an adjustable mouse platform. Comfort-Lift system lets you slide the mouse platform left or right over the keyboard numeric pad and offers three custom height positions. Keyboard tray swivels 360 degrees and adjusts in height from 4-1/4" below the track to 1-1/4" above track. Mouse platform tilts forward or backward, adjusts up or down to height of keyboard, and mounts on left or right side of keyboard. Warning Trak helps prevent the mouse from sliding off the mousing platform. Loosen single knob to adjust tray height and tilt (negative 10 degrees), and then retighten the knob to lock in position. Soothing memory foam wrist places the hand/wrist in a neutral position and features Microban antimicrobial protection so the keyboard tray stays cleaner. Platform measures 19" wide x 10-5/8" deep.