Speed Training Boxing Bag, Wall-Mounted Heavy Duty Boxing Bag Fitness Equipment Stress Relief for Office for Home Specification: Item Type: Wall-Mounted Boxing BagMaterial: PU Leather + Polyurethane Foam + SteelColor: As Picture ShownWeight: Approx. 1960g/69.1ozHow to use:Cover the bracket with a plastic cover, place the washer on the long screw, insert the long screw into a small hole up of the bracket, then insert another washer, then insert the spring washer, then rotate the spring, reinforce it with a wrench, and hanging ball to the spring, use a wrench to reinforce all parts. Package List: 1 x Ball1 x Install Bracket 4 x Expansion Screw Set 1 x Plastic Cover 1 x Rotation Spring 1 x Long Screw 2 x Spacer 1 x Gasket 1 x Wrench 1 x Inflator 1 x Gas Needle 1 x Manual The metal bracket is and the elastic PU leather can withstand thousands of impacts without deformation or damage, just as strong as a new punching bag. The high-strength spring material allows it to quickly return to its original position after each impact. Screw base is firmly fixed on the wall or floor to prevent falling and injury during use, making it safer to use. When you feel depressed or angry, you can hit it to relieve stress, release stress all day long and relax quickly.