Fellowes Designer Suites DeskReady Keyboard Drawer. Patented clamp easily attaches unit to desktop (5/8 1-1/2W) without tools or complex instructions. Offers 3 height positions: 2-13/16 3-1/2 and 4-1/16. Tray tilts at 3 6 and 9 degrees. Includes soothing memory foam wrist supports with new Microban antimicrobial protection. Position mouse on right or left side of keyboard tray. Fits standard and ergonomic keyboards.