Principle of Leverage: Carry straps use strong shoulder and leg muscles to lift items to be carried. This saves 70% of your strength and makes it easier for everyone to lift and carry heavy objects such as mattresses, shelves and refrigerators. This minimizes stress and the risk of injury to the waist, back, arms and hands. High quality materials: The withdrawal strap is made of polypropylene yarn. So it is soft, non-slip and tensile, inflexible, dense and durable. During manufacture, automatic end-to-end sewing without sharp edges allows the harness to easily support objects weighing up to 220-250 kg. Protect your home: Proper use of risers when transporting or moving will protect walls, stairs, furniture, floors and vehicles from scratches and dents. Excellent for lifting desks, lockers, mattresses, furniture, appliances, etc. Freely adjustable: Strap buckles help you adjust the straps freely to accommodate height differences of users. This gives you maximum flexibility and freedom of adjustment; lengthen or shorten the length of the bracelet.