Extra Long Tray: This 33.9' (39.4' including clamps) x 11' under-desk keyboard tray holds your keyboard, mouse, and other small accessories below the desktop for added work space and holds up to 11 lbs -Patent Pending- Comfortable Typing Angles: Easily slide the tray in and out and enjoy ergonomic typing angles that relieve stress on your wrists and shoulders. The tray extends a maximum of 8.5' from the edge of your desk