SIIG Single Monitor Desk Mount, White, Height Adjustable Gas Spring Assisted Full-Motion Easy Use, Holds 15" to 27" Screens, Up to 17.6 lbs, VESA 75 and 100 BROAD COMPATIBILITY - Ideal for 15" to 27" monitors that weigh up to 17.6 lbs. Rotatable VESA plate patterns support both portrait or landscape monitor orientation without slipping EASY INSTALLATION - heavy-duty C-clamp and grommet mount bases are included for easy and quick installation onto any desk or table FULLY ADJUSTABLE - foldable arm opens up additional space and extends up to 22"; adjust tension of Gas Shock using included 6 mm Allen Key. Turn clockwise to reduce tension for lighter monitors and counter-clockwise to increase tension for heavier monitors ERGONOMIC SUPPORT - gas spring-assisted full-motion desktop mount provides smooth, precise, and effortless adjustments for your best viewing position ELIMINATE CABLE CLUTTER - Cable management clips included to keep cables neat and organized