BeneLabel Permanent Antirust Stainless Steel 304 Heavy Duty Boxing Punching Bag Chain, 800 LB Capacity, 360 Rotation Spherical Swing Hook with 4 Chains and 4 Carabiners, 2 Wood Screws for Wooden Sets

???BeneLabel Heavy Duty Boxing Punching Bag Chain perfect for Boxing, MMA, Muay Thai or any of your favorite contact sports heavy bag training. Suitable for the home gym, commercial gym or health club. INSTALLATION STEPS ?Pre-drill two holes in the wooden beam, it is recommended to use a drill bit smaller than 0.2 inches. ?Pass the screw through the hole in the base of the swing hanger, and use a wrench or electric drill to tighten the screw. ?Connect the carabiner to your sandbag. HIGH QUALITY MATERIALS ?Use SUS 304 stainless steel,more solid quality,corrosion resistance.Without any appreciable stretching or ill effects to the finish from weathering. ?2 screws are also SUS 304 stainless steel. SIZE ?Each chain measures 15.5"" long including the carabiner and the whole assembly is 18.5"" long ?The diameter of the holes on the swing hanger base is 0.31inch, and the hole spacing is 2.05inch PACKING LIST ?1 Spherical Swing Hanger ?2 Hexagon Wood Screws ?4 Chains ?4 Carabiners ATTENTION ?The working to load limit of A 800 LB RATING.Be sure the surface to which you are mounting can support the weight and forces involved. ?In order to use safety,pls check thread rod and nut are weled together.Regularly check if the fitting is deformed. ???If you are dissatisfied with any reason, return your order for 30-Days for full refund. Keeping you satisfied and providing you with the friendliest customer service is our number one goal. Better products, and the best in customer satisfaction.