Premium materials: This rocker binding is made of high-strength polyester, which is waterproof and easy to dry, and the stainless steel carabiner is wear-resistant and durable, with a solid structure, large bearing capacity and not easy to deform.Easy Installation: You don't need any drilling or other tools to complete the installation. Simply hook the strap to a stable support, attach the screw lock to the swing and you're ready to go.Wide Application: This tree swing strap is suitable for all kinds of tree swings. The two hanging straps are perfect for hanging mats, garden swings, seesaws or hanging chairs etc.Sturdy and Safe: The hanging loop is built into the D-type metal buckle to prevent the swing strap from falling off during the swinging process. It is very strong and thick and you don't have to worry about cracks, breaks and corrosion, warping and rusting.Package: You will receive 2 tree rocker straps, 2 carabiners, which you can install and use at any time. Make sure any trees or other parts you attach are strong enough to provide safety gear for your children.