Premium quality adjustable gas spring assisted full-motion desktop mount provides smooth, precise and effortless viewing angle adjustment for the best viewing position Rotatable VESA plate supports portrait or landscape monitor orientation Foldable arm frees up additional space and extends up to 22" Both desk clamp and grommet mount bases are included, easily and quickly installs on to any desk or table Heavy-duty C-clamp is compatible with desk surfaces from 0.8" to 3" in thickness and grommet mount fits through surface hole from 3/8" to 2.25" wide and up to 3" thick Cable management system to keep cables neat, organized, and out of the way Easy adjustable gas spring tension, turn the adjustment screw clockwise for lighter monitors or counter clockwise for heavier monitors using the provided Allen Key