Keyboard tray features a tilting design that lets you place your keyboard at a more comfortable angle to help prevent wrist strain. Free-sliding design allows you to slide your keyboard tray under your desk or lock it into a fixed position. Easy-to-use clamp secures onto desks up to 1-5/8" thick without requiring any tools and can be readjusted as needed.Keyboard tray features a tilting design that lets you place your keyboard at a more comfortable angle to help prevent wrist strain. Free-sliding design allows you to slide your keyboard tray under your desk or lock it into a fixed position. Easy-to-use clamp secures onto desks up to 1-5/8" thick without requiring any tools and can be readjusted as needed.