Keep arms/hands free - Shoulder Dolly recognized the need for your arms to be unconstrained. The need for stabilization, opening doors, and overall balance is all achieved. Lift and move safely - Ergonomically designed to promote and facilitate proper lifting techniques. Built with heavy-duty materials, can lift up to 360 kg (800 lbs). Reduce back pain - Back pain and strain are avoided by ensuring proper lifting techniques and utilizing the body's strongest muscles, the legs and torso. Significantly reduces strain on arms and hands. Versatility - Thanks to the strap's seemingly unlimited adjustability through the buckle, users can move and lift heavy, bulky furniture more easily than ever. One size fits all - Differences in movers' height are overcome thanks to the adjustability of the strap through the buckle. Warning: It does not make you stronger than you are without it. Steel-toed shoes and back protection are always recommended. Do not use if you have physical limitations or injuries. See the installation guide below for instructions on safe use of Shoulder Dolly products from KJ's store