Evolve Series Quad Monitor Arm, Silver: ESI Ergo EVOLVE4-FMS-SLV (1 Monitor Arm) Quad Monitor Arm. Dynamic Height Adjustment. Monitor Extension, 18.75". Monitor Tilt, plus 80 to minus 60 degrees, Monitor Rotation, plus 90 to minus 60 degrees, Weight Capacity (per arm), Minimum, 4.4, Maximum, 15.4 lbs, 180 degree Lock-Out Feature, Quick Release, 28" Pole. Includes Desk Clamp & Grommet Mount, Max Monitor Width:27" (bezel measured left to right). Accessories for this item, LTH-EDGE, VESA-HVY, VESA100X200. Evolve Series Quad Monitor Arm, Silver: ESI Ergo EVOLVE4-FMS-SLV.