Fellowes Platinum Series Dual Horizontal Monitor Arm 8042501 These monitor screen arms have an innovative gas spring technology and provide comprehensive adjustment to suit a variety of working styles. Each arm is independently adjustable with a 360o rotation, and is able to hold a monitor of up to 9kg. Fully independent adjustable monitor arms with innovative gas spring technology allows for effortless monitor adjustment Intuitive cord management system helps minimize clutter Two 3.0 USB ports located at the base of the product make it easy to connect to your favorite devices Easy to mount - can be mounted via clamp on desks between .8\" and 4.7\" thick or grommet hole between .3\" and 2.9\" Each arm holds a monitor up to 20 lbs. Meets VESA mounting standards NOTE: LCD Monitor NOT Included.