Fits Ultra Wide Screens: Single mount for ultra-wide monitors up to 49 in size and 44 lbs in weight with 75x75mm or 100x100mm VESA patterns. Stand secures to desks up to 3.2 thick with heavy-duty C-clamp or 1.4 with optional grommet mount Tension Arm Mount: Premium spring-assist arm counterbalances the weight of your monitor for optimal ergonomic height adjustments. Ideal for gaming setups, this heavy-duty mount repositions large screens at the touch of a hand