Kensington Under-desk Comfort Keyboard Drawer with SmartFit System (K60004US) Set your optimal keyboarding height with 3 height adjustments quickly and easily by adjusting to match your SmartFit personal comfort color Drawer fits all sizes of keyboard including oversize and ergonomically shaped models Extra-wide 26" tray can also hold a wrist rest, mouse and mouse pad alongside the keyboard on either the left or right side; wrist wrest and mouse pad included 29.5"L x 28.0"W. Height levels include 2", 2.5" and 4" TAA Compliant