BeneLabel Heavy Duty Boxing Punching Bag Chain 800 LB Capacity 360 Rotation Wood Beam Holder 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. SIZE ?Each chain measures 12.5 inch long including the carabiner and the whole assembly is 15 inch long ?The diameter of the holes on the swing hanger base is 0.31 inch, and the hole spacing is 2.05 inch PACKING LIST ?1 Heavy Duty Wood Beam Holder ?2 Hexagon Wood Screws ?4 Chains ?4 Carabiners ATTENTION ?Its maximum weight is 800 LB.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.