Humanscale Monitor Arm M8M8, 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, M8 meets a variety of configuration needs for single monitors from 3. 5kg to 18kg. M8 supports a better working posture, creates more usable desktop space and helps maintain a clutter free environment. It offers quick, simple installation and