Premium quality adjustable spring assisted articulating monitor arm provides smooth, precise and effortless monitor viewing angle and height adjustment. Heavy-duty C-clamp is compatible with desk surfaces from 0.4″ to 2″ in thickness and grommet mount fits through surface hole from .40″ to 2.25″ wide and up to 2″ thick.. Features Rotating VESA plate supports landscape or portrait monitor orientation; Supports 17″ to 32″ displays (screen size measured diagonally) weighing up to 17.6lbs; Compatible with VESA mounting patterns 75 x 75 and 100 x 100 mm; Both C-clamp and grommet mount bases are included, easily and quickly installs onto most of desks or tables; Removable VESA plate for quick and easy monitor installation; Integrated cable management system keeps cables neat, organized, and out of the way; Specifications Material: Aluminum, Plastic, Steel; Mounting pattern: 75 x 75 mm, 100 x 100 mm; Weight: 12.76 lbs;.