Lever principle: Carrying straps use powerful shoulder and leg muscles to lift objects 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 removal strap is made of polypropylene wire. So it is soft, non-slip and tensile resistant, inflexible, dense and durable. During manufacturing, automatic wire-to-wire stitching 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 users' height differences. You thus benefit from maximum flexibility and freedom of adjustment; extend or shorten the length of the bracelet.