Features:-Full motions flexibility with all directional effortless adjustment without tools used-Durable gas-strut cylinder and conical joints constructed for smooth and stable operation-Ergonomic design concept relax your life-Integrated cable management conceals inside to provide a clean, neat, and clutter-free appearance-Compact and retractable design increase your workspace   Specifications:-Model No: NB-F80-Made of Aluminum alloy and cold rolled steel-Suitable for up to 27inch LCD/Monitor-With an air press structure, easy to move up/down-Rotate by 360°-Tilt-up/down： 85°/-85°-Swivel：-180°/180°-With cable system to hide the cables-Support load from 4.4 to 19.8lbs( 2-9kg)(plz make sure your screen is within this range or the mount\'s gas spring couldn\'t work )-VESA: 75/100MM-Distance from base to screen 538mm (max)-screen lifting distance 0-262mm-Clamp installation: desk thickness 10-90mm,width >=40mm-grommet installation: hole diameter 10-50mm( if you need over 50mm,plz choose the option for big hole)