Fellowes Tilt-n-Slide Pro Keyboard Manager (8060201) Single lever easily adjusts the tilt from flat to 30 degrees and the slide with a 4-5/8" travel distance Comfort Glide System mouse tray slides over numeric key pad to encourage neutral posture Ultra-soft, memory foam wrist support delivers comfort and features Microban antimicrobial protection This items packaging will indicate what is inside and cannot be hidden. Features Comfort GlideSystem - mouse tray slides over numeric key pad Attaches to desktop edge without tools, which allows platform to tilt or slide with ease Extended knee clearance keeps you comfortable while typing and mousing Attaches to desktops up to 1-3/4" thick without surface damage Single lever easily adjusts tilt (flat to 30) and slide (4-5/8" travel distance)