Fellowes 8036101 Professional Executive Adjustable Keyboard Tray, 19w x 10-5/8d, Black Height and tilt indicators let you customize keyboard tray settings Designed and manufactured for Fellowes by Humanscale Comfort-Lift system lets you slide mouse platform left or right over keyboard numeric pad and offers 2 custom height positions Mouse platform tilts forward or backward and adjusts up or down to height of keyboard Mouse platform mounts on left or right side of keyboard Dramatically improves the way you work with a higher standard of comfort and maneuverability. Promotes neutral hand/wrist position. Fully adjustable unit moves keyboard and mouse off the desktop to save workspace. Simple one-handed motion instantly repositions keyboard height without locks or levers.