Keyboard Tray, Arm, Glide Track, Black, Track Length 21-3/4 In., Swivel Angle 360 Degree, Phenolic Board w/Laminate, Height 5-3/4 In., Length 21-1/4 In., Width 28-1/4 In., Comfort-Lift System, Height and Tilt Indicators, Single-Touch Lever Tilt, +/-Mouse Tray Tilt and Hight Setting, Memory Foam Wirst Support, For Use With Diagonal, Curved, or Straight Workstations, Includes Keyboard Tray, Mouse Tray, and Wrist Support