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.