Material: All parts are made of metal for a more stable, smoother, and safer suspension. The steel spring has a load capacity of up to 250 kg, perfect for the safe and easy suspension of hanging chairs, hammocks, and swings. Easy Assembly: This stainless steel carabiner hook is secure. The integrated design allows for installation in minutes, saving you time and effort. Comfort: The hammock spring allows for gentle and comfortable swinging. The steel spring can bounce with amplitude and swing or rotate comfortably, relaxing your body. Versatile Use: High-quality metal spring for various applications, whether in the garden, camping, traveling, fishing, hiking, sports, or sailing. Suitable for lamps, awnings, hammocks, porch swings, swing chairs, punching bags, outdoor swings, aerial yoga, rotating grills, etc. Practical: Hammock set suitable for indoor and outdoor use, such as indoor and outdoor straps, awnings, rings, yoga hammocks, porch swings, swing chairs, sandbags, hanging chairs, and air yoga, etc. Material: Metal Color: Black Package Contents: 1 x Carabiner Hook 2 x Carabiner Hooks 1 x Swivel Ring Note: Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.