In todays fast-paced, agile work environment, theres no time for discomfort. M8.1, part of Humanscales revolutionary new monitor arm line, instantly improves the comfort, health and productivity of any workspace. Fully compatible with traditional desks and sit/stand workstations alike, this M8.1 option is for single monitors from 6 to 28 pounds. This configuration comes with the Two-Piece Clamp Mount Base, Crossbar (to accomodate dual monitors), the Angled/Dynamic Link, and the Standard 100mm x 100mm black bracket.