The Hilti Shoulder Exoskeleton (called the EXO-S) is designed to help lower the physical strain and fatigue on one's shoulder, arms, and neck when doing above-shoulder work - e.g., milking in a dairy parlor; installing conduit, drywall, suspended ceiling; finish surface grinding, sanding, etc. The 5-pound device includes shoulder/arm-lift/neck supports, strapping, a belt, and two battery-powering units The manufacturer claims it is easy to put on, adjust, and keep clean.