Easy Adjust Keyboard Tray features height and tilt indicators that help you achieve perfect settings for comfort. Gel wrist has antimicrobial product protection that inhibits the growth of microorganisms such as bacteria. Height adjusts +6/-4. Keyboard tray will work in standard workstations and corner workstations that can accept a 21" track. Compatible with ergonomic keyboards. It has a tilt range of +15/-15 degrees, 360 degree swivel and unlimited positions within height range. Mousing surface can be used to the left or right of the keyboard.