The 3M Adjustable Keyboard Tray MMMAKT80LE is a sturdy, highly adjustable platform designed for ergonomic comfort. It features a height adjustment range of +1" to -4-1/2" and a tilt adjustment of +15 to -15 degrees. The adjustable mouse platform can be mounted on the left or right and easily adjusts up, down, forward, and back. Made with 25% recycled content, it also includes leatherette gel wrist rests that offer antimicrobial product protection.