Save Desk Space: This 22.8 x 9.8 keyboard tray installs to the underside of a sturdy desktop (at least 0.75' thick), holding your keyboard and mouse conveniently below the desktop for ergonomic typing angles and added workspace Screw-In Design: Our under-desk keyboard tray ensures secure placement with a precision-engineered design that seamlessly integrates with your workstation. The tray does not lock in place to maintain fluid adjustability