[Material] All parts are made of metal, providing a more stable, smoother and suspension. The steel spring can be loaded up to 250 kg & therefore great for a safe & simple spring suspension of hanging chairs, hammocks, hanging chairs.[Easy to ] This rustproof snap hook is safe. integrated design can be installed in minutes, which is neither time consuming nor labor intensive.[Comfort] The hanging chair swing spring set allows you to swing gently and comfortably, the steel spring can jump with the amplitude, and swings or rotates comfortably, which relaxes the human body.[Various applications] metal spring for many areas of use, whether , in the garden, on or when camping, traveling, fishing, hiking, sports and sailing. Suitable for lights, awnings, hammock chairs, porch swings, rocking chairs, punching bags, outdoor swings, aerial yoga, swivel grills, etc.[Practical] Hanging chair suspension set suitable for indoor and outdoor use, Such as indoor and outdoor carrying straps, awnings, gymnastics rings, yoga swing hammocks, porch swings, rocking chairs, sandbags, hanging chairs and air yoga,etc.Material:Metalcolour:BlackPackage Contents:1 x snap hook2 x Carabiner1 x Swivel Ring