Platform features a fully articulating and swiveling platform style with a recessed surface, 30-degree platform tilt (15-degree positive and 15-degree negative tilt) and 360-degree rotation. Maximum platform height adjustment is 5" below and 6" to 1" above the worksurface. Keyboard locks into position. Platform offers a padded palm rest and fully retractable, steel ball-bearing, slide suspension. Sliding 9" wide x 9" deep mouse tray works on either the left side or right side and can be detached and mounted underneath worksurface. Required mounting clearance for keyboard is 21" wide at the minimum x 17" deep.