Ergotron HX Triple Monitor Bow Kit - Mounting component (handle, 3 swivels, hinge) for 3 monitors - white - Screen size: up to 24 inches.Increases viewing comfort: Helps reduce eye, back and neck strain.The hinged bow allows monitors to pan outward independently, ideal for sharing screens.Optimize the viewing parabola for enhanced ergonomic comfort by rotating monitors inward using the hinged bow.Independent, quick release monitor pivots with effortless P/L, pan, and tilt for custom positioning.(Arm Not Included Please Add 45-475-216 to Complete Unit ).