Leaning forward and tilting your head up or down to see your computer screen can place strain on your neck and back. The Fellowes Premium Monitor Riser raises your monitor to eye-level and positions the screen at a more ergonomically correct and comfortable viewing height to suit you, reducing the strain placed on your shoulders neck and eyes. The Fellowes Premium Monitor Riser supports up to 36kg or 21inch? CRT or TFT/LCD monitor. It is height adjustable with five positions of 64mm to 165mm and comes with a durable plastic base that doubles as handy paper storage shelf. Accredited by Fira International, an Independent Ergonomic Accreditor and is made from 100% recycled plastic.