STURDY AND COMPLETE: Made of premium 304 stainless steel, durable, high strength, corrosion resistant, 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, and sling trainers. 360-Degree Rotation Design: The stainless steel swivel allows 360-degree free rotation to prevent suspension ropes, chains, or webbing from twisting and reduces wear. 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 for stable, smooth, and safe suspension. Easy to assemble: The two large carabiners attach easily to the spring’s eyelets. Each carabiner supports a maximum load of 250 kg. With the steel spring, you can quickly and safely hang hammocks and hanging chairs. The integrated design enables installation in minutes.