Fellowes Designer Suites Compact Keyboard Tray, Black (8017801) Fully adjustable, loosen single knob to adjust tray height and tilt, then retighten knob to lock in position Warning Trak helps prevent mouse from sliding off mousing platform, non-skid pads prevent undesired keyboard movement Standard platform accommodates both right and left-handed mousing Soothing memory foam wrist supports with Microban antimicrobial protection stay cleaner and place hands/wrists in neutral position Features compact 17-5/16 Inches glide track to fit restricted workspaces