This adjustable monitor arm allows for several height options for placing your monitor in the best ergonomic position, while offering more desk space. This highly adjustable monitor arm moves up, down, forward and back. The Monitor arm provides 7 1/2 of height adjustability and extends 19 1/2 from the base. Monitor can rotate from landscape to portrait for optimal viewing. Clamp mount hardware fits desks up to 4 1/4 thick and grommet mount hardware fits desks up to 2 1/4 thick. Weight capacity of 13.6kgs VESA MIS-D Compliant.