Display/POS Height Adjustable Back to Back will support a maximum of 2 displays @ 88lbs total (20kg). Dual configuration accessory for the Spacedec SD-POS-HA display mount; easily converts single display mount into a back-to-back configuration. Quick release mechanism for fast display attachment/removal with optional security screw. Ball joint mechanism allows 20 degrees of display adjustment in any direction from the vertical plane - Color Black