Articulating keyboard shelf accommodates both keyboard and mouse and retracts completely under the desk surface when not in use. Design offers engineered wood with laminate, two nonslip strips on keyboard shelf and full width to accommodate oversized keyboards. Keyboard shelf mounts on bbf Series A and C corner desks, corner modules, L-bow desks, Quantum and Office-in-an-Hour desks. Articulating keyboard shelf adjusts for the correct positioning of wrists with a 5-3/10" height adjustable range and 15" of forward-backward travel. Tilt range is 17 degrees down and 10 degrees up. Keyboard shelf swivels 180 degrees left and right.