WeWentSimRacing 
SimFab Monitor and TV Stands Height Adjustment Extension Kit
by SimFab
Elevate your monitor or TV to new heights with the SimFab Monitor and TV Stands Height Adjustment Extension Kit. Designed exclusively for SimFab stands, this kit adds an additional 0-11 inches of height to the vertical posts of single monitor/TV stands. Please note that it is not compatible with triple monitor/TV stands. Proudly designed and manufactured in the USA.