INDOOR & OUTDOOR USE: for hammock chairs swing,porch swings,swinging chairs,punching bags,or hanging any other heavy object of an overhead mount. CORROSION RESISTANCE,HIGH HARDNESS:304 stainless steel rings made of raw materials.No rust,corrosion resistance,high hardness, non-toxic and pollution-free environment.Suitable for any scene. EASY TO INSTALL:We've pre-drilled two holes for bolting to wooden beams or concrete.Includes 2 concrete anchor and 2 hex lag bolts,and a unique one piece design and can be installed in minutes. 360ROTATION DESIGN:The innovative design makes use more flexible and can be used more widely.Such as playgrounds,swings,porch swings or hammock swings. WHAT YOU GET:Swing hanger with 2 concrete anchor and 2 hex lag bolts