The OEM 3M Adjustable Keyboard Tray MMMAKT70LE features a positive locking, lever-actuated arm that ensures the platform won't change height if bumped. It includes a gel wrist rest with antimicrobial product protection for added hygiene. The height adjusts +1"/-4-1/2", with a tray tilt range of +10/-15 degrees and 360-degree swivel capability. The mousing surface can be used to the left or right of the keyboard, and the tray is made with 70% recycled content.