VESA 75x75 or 100x100 Viewing angle adjustment of 20° in any direction Both monitors can be adjusted independently using the QuickShift lever mechanism, tool-free Quick display release mechanism for easy installation Freestanding base included, can be placed anywhere and moved easily Can be fixed to the desk using an optional accessory (AC-GC, sold separately) Can be used for dual and single display configurations All mounting hardware included Material: lightweight and durable anodized aluminum