Premium quality. Mouse platform slides left or right over keyboard numeric pad and offers two custom height positions. Mouse platform tilts forward or backward, adjusts up or down to height of keyboard, and mounts on left or right side of keyboard. Warning track helps prevent mouse from sliding off mousing platform. Keyboard height and tilt can be adjusted with one hand. Soothing memory foam wrist wrest with antimicrobial protection. 5-3/4 x 27-1/2 x 21-1/2 in.