Fits Ultra Wide Screens: Dual mount for ultra-wide monitors up to 35' in size and 26.4 lbs in weight each with 75x75mm or 100x100mm VESA patterns. Stand secures to desks up to 3.15 thick with heavy-duty C-clamp or 1.7 with optional grommet mount Powerful Pneumatic Arms: The spring-assist arms counterbalance the weight of your large monitors for optimal ergonomic height adjustments. Ideal for gaming setups, this heavy-duty mount repositions large screens at the touch of a hand