Fellowes Designer Suites DeskReady Keyboard Drawer easily attaches to most workstations without tools or complex instructions. Patented clamp attaches unit to desktop (5/8 1-1/2 thick) without surface damage (33-3/4" wide space required). Offers 3 height positions below desktop to ensure personal comfort: 2-3/16, 2-13/16, & 3-1/2. Soothing memory foam wrist supports with Microban antimicrobial product protection stay cleaner & place hands / wrists in neutral position. Separate keyboard & mouse platforms allow you to position mouse on right or left side of keyboard tray. Sturdy, impact-resistant tray fits standard keyboards. Series Name: Fellowes Designer Suites; Workstation Type: Straight; Sit-to-Stand Option: No; Height (+/- Desktop): +0" Above to 2.91" or 3.5" Below.