The Tree swing rope hanger is made of durable PE rope with galvanised steel metal fixings and secure black plastic reinforced welds. Suitable for any single or duel rope swing seat. It can also be used to add extra height to your swing seat ropes should your swing beam be a little higher than standard. The ropes allow you to hang most Swing Seats from a tree branch - it is important that the tree branch you are attaching the swing to is strong and safe, and that the swing seats are attached following the instructions provided.