mouse platform clamp on under desk adjustable keyboard/mouse tray mount swivel mouse tray wrist rest rotating 360 degree fuzadel ergonomic design and adjustable under-desk swivel desk pad adjustable. sturdy metal clamp fits onto desks up to 54mm / 2.12inch. 3 section height adjustment, easy to attach: with the screw-on clamp, it can be installed without any tools. 3.15 inches below your work surface once attached. space saving, platform rotates 360 degrees to hide it under the desk, easy to use in multiple angles and can be rotates under the desk when not in use. dimensions: 7.59" x 1.97" x 9.6"