WIDELY USE: Enjoy your indoor and outdoor recreation with our swing spring hanging kit which is specifically designed to hang your swing chair, swing seat, hanging chair, hammock, tent, boxing, porch swing, punching bag or other heavy object, Introducing a unique even suspension system for hours of movement in silence with safe, smooth swinging pleasure. Perfect for your patio, porch, horizontal tree log or ceiling mount. HIGH QUALITY: The comfort springs are made with a high-strength spring steel, which are zinc-plated and clear-coated to provide protection against the elements and rust-resistant. swing swivel and snap hooks are made of stainless steel, corrosion resistance,high hardness, non-toxic and pollution-free environment.Suitable for any scene. SAFE AND SECURE: the springs are tightly coiled together for effective shock absorption enhancing the comfort of your porch swing with every movement, enhancing your comfort and protecting your overhead support.which is safe for adults and children of all ages,the swivel hook allows 360 degree rotation without any tangling or twisting, and the snap hook will securely clip onto your hammock or swinging chair. EASY TO INSTALL:You can easily install this spring set to your hammock chair within minutes without using any tools, universal to fit any size, style or design hammock, You will get: 2*8mm snap hook x 1* spring x 1*360 degree rotation hook.