STURDY AND COMPLETE: Made of premium 304 stainless steel, durable, high strength, corrosion resistant, high hardness, rust resistant, and waterproof. More robust and safer. Wide scope of application: Our hanging chair springs can be used for hammocks, punching bag stands, swings, yoga towels, children's hanging chairs, Swiss chairs, hanging seats, love swings, sling trainers, and more. 360 Rotation Design: The stainless steel swivel allows 360-degree free rotation to prevent your suspension (rope, chain, webbing, etc.) from twisting and reduces wear and tear. Scope of delivery: 1 carabiner with spring (15 cm long), 2 climbing loops (8 cm long), and 1 360-degree rotating hook (9 cm long). All parts are made of stainless steel and provide a more stable, smoother, and safer suspension. Easy to assemble: The two large carabiners are simply hooked into the eyelets of the spring. The carabiner can support a maximum load of 250 kg. With the steel spring, you can easily and safely hang hammocks and hanging chairs. The unique integrated design allows for quick installation in minutes.