This tray allows easy height, tilt, and swivel positioning of your keyboard. While it does offer both height and tilt adjustment these cannot be adjusted independent of each other, i.e. any adjustment requires resetting of both height and tilt. It includes a full-width leatherette-covered gel palm pad (with anti-microbial protection; 3M model WR340LE) and a 7.25" x 6.25" 3M Precise Optical Mousing Surface (MP200PS) that can be positioned to the left or right. Installation is done without tools in four easy steps, typically in less than 10 minutes. The sliding track is attached via an adhesive strip and the front is secured by hooking the front lip over the desk edge. Also, the keyboard tray is storable, but not fully under the desk (3.0" protrusion); and the tray itself is made of coated MDF (Medium Density Fiber) board.