Sturdy and complete: Made of high-quality 304 stainless steel, durable, high-strength, corrosion-resistant, high-hardness, rust-proof, and waterproof. Stronger and safer. Wide range of applications: Our hanging chair springs can be used in hammocks, sandbag stands, swings, yoga towels, children's hanging chairs, swings, Swiss chairs, hanging chairs, love swings, sling trainers, 360-degree rotation design: stainless steel vortex allows 360 Degree of free swivel to prevent your suspension (ropes, chains, webbing, etc.) from rotating and protecting it from wear. Scope of delivery: 1 spring-loaded carabiner (15 cm long), 2 climbing rings (8 cm long) and 1 swivel hook 360 (9 cm long). All parts are made of stainless steel, providing a more stable, smoother and safer suspension. Easy to assemble: Two large carabiners simply hook into the spring eyelets, the carabiners can support a maximum load of 250kg. Using steel springs, you can easily and safely hang hammocks and hanging chairs. Unique integrated design installs in minutes.