High Quality Material: All parts are 304 stainless steel, can hold up to 1000 lbs. High quality industrial swivel hangers. Design Design of Rotation 360: The 360 swivel mount rotates freely, which can prevent entanglement or twisting. The innovative design makes the use more flexible and can be used more widely. Indoor and Outdoor Use: Perfectly suited for hammock swings, porch swings, punching bags or hanging any other heavy object. Including gymnastic rings, ceiling brackets and yoga trapeze swings. Easy Install: Can be installed on a concrete ceiling or a wooden beam. Comes with 2 bolts that suit the concrete application and 2 screws that suit the wood application (we have pre-drilled two holes for bolting to wood beams or concrete). This that you obtain: Swing bracket 1pc, M8 carabiner 2pcs, 2pcs bolts and 2pcs screws.