enjoy A User-friendly Desk Option With This Articulating Keyboard Tray With A Black Finish For An Accessory That Works. It Attaches To Your Desk And Retracts Under The Surface When Not In Use. This Adjustable Keyboard Tray Offers A 5-3/10 Height-adjustable Range. It Is Capable Of 27 Degrees Of Tilt Adjustment, With 17 Degrees (negative) And 10 Degrees (positive) Direction, Plus 15 Degrees Of Forward And Backward Travel. It Also Swivels 180 Degrees To The Left And Right. Included Two Nonslip Strips Hold Keyboard Securely In Place. Use On Many Bush Business Furniture Lines Including Momentum, Milano2, Quantum, 300 Series, Enterprise, Syndicate, Series A, Series C, Office In An Hour And Venture.