Fits up to 32' Screens: Compatible with most monitors up to 32 in size with 75x75mm or 100x100mm VESA mounting holes (Screen must weigh at least 2.2 lbs and no more than 20 lbs) Pneumatic Spring Height Adjustment: Tool-less monitor placement with perfect counterbalance presentation in all directions. Raise your screen from 6.5 to 20 with just the touch of a hand