FITS 13 TO 34 SCREENSingle monitor desk mount fits most of flat/curved/ultrawide computer monitors up to 20 lb in weight with VESA 75x75mm or 100x100mm mounting holes. SAVE VALUABLE SPACEHeavy-duty metal base only take up 4 x 3.7 desk surface. The c-clamp and grommet mounting options support up to 3.3 desk thick. ERGONOMIC VIEWING HEIGHTPremium gas spring monitor arm assists height adjustment from 6.7 to 20, which passes 16,000-cycle motion test. Adjusting the monitor adapts to your posture by arm extension, vertical tilt, horizontal swivel, and landscape or portrait rotation. DISCOVER PRODUCTIVE SELFAfter locking a few screws, the monitor mount instantly improve working posture, increase workspace, and hide cables. RESPOND WITHIN 24HRsFriendly tech support to help with any questions or concerns. AVLT-DM03-1 is covered by 3-YEAR MANUFACTURER WARRANTY and LIFETIME TECH SUPPORT.