2xhome - New Dual Extension Arm 3 Way Three-sectioned Ergonomic Fully Easy Height Adjustable Articulating Flex Deesktop Tilting Retractable Black Desk Pole Mount Bracket Latest & Most Convenience Design - tightening knob, securely locked the height up to 15.75. (No screws required when you adjust the height!) Built in cable management system keeps cords organized Extra-Long arm extended from 4.1 to 15.5; monitor arm can articulate in 3 different locations for best positioning - Tilt: +/- 15 degrees, Swivel: 180 degrees, Rotate: 360 degrees VESA mounting pattern: 75 x 75 or 100 x 100 - Holds 2 screens up to 27 and max 22Lbs Small footprint design, metal base ensures stable mounting on the desk. (No drilling required) - Ideal for office, reception areas, hospital, retail environments