This free standing monitor mount features easy vertical height adjustment for computer displays. Instantly raise your monitor to add extra height; handy for changing positions throughout the day to stay comfortable. It is extra useful for use with sit-stand desks for quick monitor adjustments when you change desk height settings. Just lift your monitor upwards and the ratcheting mechanism automatically locks the height setting. No cumbersome screws or locks need to be set. To lower the monitor; raise it all the way up to unlock the ratchet to allow it to be lowered all the way down. Aside from easy height adjustment; it is also easy to move the monitor on your desk; thanks to the free standing base. No clamping or drilling is needed. The base is a solid steel platform; that ensures stability while providing flexibility. Features: Easy height adjustment Place your monitor anywhere on your desk No need to clamp or drill holes Works with any desk and computer setup Works great with sit-stand desks Works with most monitors up to 27" and weighing up to 13.2 lbs. Supports 75x75 and 100x100 VESA® patterns The solid; powder-coated steel base provides stability Quality metal structural parts ensure durability Features quick release VESA plate Support Files: User's Manual (Oct 30; 2018) WORKSTREAM™ and the WORKSTREAM logo are trademarks of Monoprice Inc. VESA® is a registered trademark of the Video Electronics Standards Association.