The tree swing hanging straps are made of high-density nylon ,can withstand harsh winters and brutal summers.The D-rings and hooks are made of premium stainless steel.Swing hanging strap can hold up 600lbs. Neednt any other hardware, easily hang any swing to tree or play set. First: Hanging usage, just throw it over a tree or beam and attach the hooks to your swing or patio furniture; Second: Adjustable usage, open the safety clasp, pass the rope through the metal buckle, locked up then pull the rope ends tight. Our swing straps fits all swing types, Hammock swings, patio swings, porch swings, tire swings, hanging chairs, baby carrier swings and so on. Easy to mount, no drilling or screwing involved. Its convenient to store and carry with the bag provided. You can get 5 ft straps(2 piece). Also Included Are: 2 Tree Protectors (for The Straps) , 2 Locking Carabiners.It is easy to secure the swing or hammock on a tree branch or swingset bar in few minutes. Comes with a convenient carrying bag, It is ideal for camping, hiking and picnicking.