Learning Resources 8038302 Fellowes Designer Suites Desk Ready Keyboard Drawer (CRC80383) Attaches to virtually any work surface without tools or complex instructions, kindly refer the video for installation help and the user manual given below for troubleshooting steps. Patented clamp attaches unit to desktop (5/8" - 1-1/2" thick) without surface damage (33-3/4" wide space required), item (H x W x D) 3.13 x 28.63 x 14.00 inches, weight 5.75 pounds Tray adjustment tilts to 3, 6, or 9 degrees to suit personal preference, and separate tray and mouse platforms allow you to switch mouse position to right or left side of keyboard tray Sturdy, impact-resistant tray fits standard and ergonomic keyboards, and the ball-bearing glide tracks ensure smooth drawer movement Includes soothing memory foam wrist rest for keyboard tray and provides convenient cable management for keyboard and mouse cord Includes soothing memory foam wrist rest for keyboard tray and provides convenient cable management for keyboard and mouse cord, Can adjusts tray to one of three height positions below desktop for personal comfort: 2-1/2," 3-1/8,"and 3-3/4". NOTE: Check instruction video for installation details before use