Description Extends up to 18″ Vertical height range of 12″ Accommodates monitor/screen sizes from 17” – 30” (19.8 lb. weight limit) 360° pivot range Integrated cable management system Quick release VESA mount with two size options: 75x75mm and 100x100mm keeps your work surface free of cable clutter Can be set up with either clamp base or grommet base Made of sturdy cast aluminum Weight capacity: 4.4-22 lbs.