Optimize Your View - ErgoFocus triple full motion monitor desk mount can tilt ±90°, swivel ±90°, and support rotation 360 degrees. The Center screen can be height adjusted and the 2 gas spring arms make the extension, retraction. With multiple screen combinations, easily find an optimal viewing angle and position for comfortable work Wide Compatibility - Upgraded 3 monitor stands for 3 monitors, and widely fits most 13' to 27' flat/curved computer screens, including but not limited to 17 18 19 20 21 22 23 24 25 26 27 inch computer monitor. Heavy-duty three monitor desk mount holds up to 17.6 lbs per arm, compatible with 75x75mm and 100x100mm VESA patterns Two Mounting Options Available - The three monitors desk mount offers two install options. C-Clamp fits for most tables with a thickness of 0.39'-3.15'. Grommet base mounting fits desk with a thickness of 0.39'-1.97'.