Save Desk Space: This 26.8' (33' including clamps) x 11' under-desk keyboard tray holds your keyboard, mouse, and other accessories below your desk for added work space. Holds up to 11 lbs and extends a maximum of 8.5' from desk edge -Patent Pending- Height Adjustable for Ergonomic Typing: Easily slide the tray in and out and enjoy ergonomic typing angles that relieve stress on your wrists and shoulders. The height adjustable tray has 2.4' of total adjustment with 5 set points for customized placement