Position your keyboard and mouse in their ergonomically correct position to enhance comfort and productivity. The Easy Adjust System and wide range of arm weight positions allows you to move between sitting and standing positions,** providing optimal ergonomic benefit and helping avoid repetitive stress injuries. **Easy Adjust System Range of arm position provides true sit/stand options for the 5th to 95th percentile of the US population. - For workstations where mounting depth is greater than 23.25"". - Compatible with corner workstations. - Includes 70% preconsumer recycled content by volume.