Keyboard drawer easily attaches to most workstations without tools or complex instructions. Patented clamp attaches unit to desktop (5/8" to 1-1/2" wide) without surface damage. Drawer offers three height positions below desktop to ensure personal comfort: 2-13/16" , 3-1/2" , and 4-1/16". Tray tilts at 3, 6, and 9 degrees to suit personal preference. Soothing, memory foam wrist supports with Microban antimicrobial protection stay cleaner and place hands/wrists in neutral position. Separate keyboard and mouse platforms allow you to position mouse on right or left side of keyboard tray. Sturdy, impact-resistant tray fits standard and ergonomic keyboards.