Fellowes Designer Suites Monitor Riser, Black Raises monitor to comfortable viewing height and maximizes workspace Supports monitors up to 21" or 40 lbs. Height adjusts up to 1-5/8" (between 4-3/8 and 6) for optimal viewing angle Storage tray organizes essentials such as pens and paper clips Non-skid rubber feet protects work surface from scratches or scuffs Raises monitor to comfortable viewing height and maximizes workspace Supports monitors up to 21" or 40 lbs. Height adjusts up to 1-5/8" (between 4-3/8&#8221; and 6&#8221;) for optimal viewing angle Storage tray organizes essentials such as pens and paper clips Non-skid rubber feet protects work surface from scratches or scuffs