Keep Arms/Hands Free - Shoulder Dolly recognized the need for your arms to be free. The need for stabilization, opening doors, and overall balance is achieved. Lift and Move Safely - Ergonomically designed to promote and facilitate proper lifting techniques. Built with heavy-duty materials, can lift up to 800 lbs. Reduce Back Pain - Back pain and strain are avoided by ensuring proper lifting techniques and utilizing the body's strongest muscles, legs, and torso. Greatly reduces strain on arms and hands. Versatility - Thanks to the seemingly unlimited adjustability of the strap through the buckle, users can move and lift heavy, bulky furniture more easily than ever. One size fits all - Differences in the height of the movers are overcome due to the strap being adjustable through the buckle. Warning: It does not make you stronger than you are without it. Steel toe boots and back protection are always recommended. Do not use if you have any physical limitations or injuries. Please see the installation guide below for instructions on how to safely use the Shoulder Dolly. We not only provide you with high-quality products, but more importantly, we provide you with a long-term after-sales guarantee. When you purchase our products, you will receive comprehensive after-sales support, so you can shop with confidence and satisfaction.