Heavy duty monitor arm securely lifts, turns and tilts ultrawide monitors for an immersive viewing experience for work or gaming. Comes with interchangeable C-clamp or grommet base mount for use on desktops up to 2.4 inches thick. Reclaims valuable desk space by replacing bulky monitor stands; easily adjusts ultrawide, curved monitors or curved gaming monitors across an expansive range of motion for comfortable, personalized views sitting or standing. Before buying, check the weight of your monitor (not including the base). The 24" to 43 " screen is suitable for purchasing 11 lbs to 33lbs monitor arm(S515). The 34" to 49 " screen is suitable for purchasing 22 lbs to 44lbs monitor arm(S1020). Includes desk monitor arm, extension, heavy-duty pivot, 75/100-millimeter VESA plate, desk clamp and grommet mount bases, tools and fasteners for easy installation. Easily adjusts ultrawide, curved monitors or curved gaming monitors across an expansive range of motion for comfortable, personalized views sitting or standing. The high-grade material gas spring arm can be extended and retracted, +90°/-15° tilt and +90°/-90° swivel to change reading angles, and 360° rotate from landscape to portrait mode.