Dual monitor mount for Screen Size up to 27 inch, weight capacity 22 lbs, VESA Size 75 x 75 mm and 100 x 100mm. The two-stage locking system is compatible with 4” C-clamp and 3” Grommet Base. Adjustment: +45° ~ -45° Tilt, +90° ~ -90° Swivel, +90° ~ -90° Rotate, Max Height 31.5 inch. Package Include: 1 x WALI Dual Monitor Mount (Black), 1 x Mounting Hardware Kit, 1 x User Manual, 10 Year Protection.