360 ROTATION DESIGN 360 Free Rotation Attachment Hook with Pull Buckle that Opens Easily. Innovative and patented design. HIGH QUALITY, PROTECTION AGAINST CORROSION304 stainless steel rings made of high quality raw materials. No rust, corrosion resistance, high hardness. SUR & Heavy duty commercial grade swing hangers are designed for use by children and adults, and designed for residential use at a 500kg rating, they are secure. EASY TO INSTALL We have pre-drilled two holes for bolting to wooden beams or concrete. Including 2 concrete anchors and 2 hex bolts. Pre-drilled concrete application expansion screws installed in just minutes. MULTIFUNCTIONBest use as wall hook for sling trainer, suspension trainer, punching bag, gym, yoga, swing indoors or outdoors. Product Description Delivery 1 360 Ceiling Hook 2 x Concrete anchors 2 x Hex screws