3M Keyboard Tray with Sturdy Wood Platform, Flip Lever to Adjust Height and Tilt, Swivels Side to Side and Stores Under Desk, Gel Wrist Rest and Precise Mouse Pad, 17.75" Track, Black (AKT71LE) Flip lever to adjust height +.5"/-5.5" from mounting surface and separate pull lever adjusts tilt +10/-15 to get to comfortable working position Sturdy all-in-one wood platform minimizes bounce while typing and mousing Includes easy to clean leatherette covered gel wrist rest with and Precise Mouse Pad with battery saving design that positions right or left Platform swivels left and right 360 and stows completely under the desk when not is use Lifetime warranty on keyboard arm, five years on keyboard platform, and one year on gel wrist rests Required space under surface needed to mount: 26" W x 18" D