$ 26.99 + $ 12 off coupon[LIST][*]Compatibility: Fits two monitors up to 27", maximum support weight up to 22lbs per arm.[*]Mount plates detachable and height adjustable compatible with VESA mounting hole 75x75mm and 100x100mm.[*]Multiple Options: The two-stage locking system is compatible with 4" C-clamp and 3.1" Grommet Base.[*]Multiple Adjustment: The high-grade arms extend and retract, +/-90° tilt and swivel to change reading angles, and 360° rotate from landscape to portrait mode.