Widely Used Suitable for all sizes of Taekwondo, Muay Thai bags, swings, porch swings, sling swings, swivel seats or any other swings for playground swings. Black Powder Coating Made of heavyduty steel to prevent rust. The black powder coating treatment prevents corrosion and keeps the hook at its best performance. Easy to Install Package List: 1 bag hanger, 1 carabiner, 1 swivel chain buckle, 2 lag bolts, 3 hex bolts, 3 hex nuts. Use screws to install, convenient and fast, installation can be completed in five minutes. Heavyduty Steel Construction Made of sturdy heavyduty steel, worryfree use and excellent performance. 5 bolt holes, 5 bolt points, firmly mounted on the wall, keep it safe even during and after intense boxing training. Space Saving This wall mounted training hook can save space at home. You only need to leave a little space on the wall or wooden board to hang the sandbag. The screw installation is durable.