RELIABLE FOR INDOOR AND OUTDOOR USES: Perfectly support hammock chairs, porch swings, swing chairs, punching bags. Whatever you want to hang indoors or outdoors for you or your children, it will hang securely ready to provide you with fun and relaxation for a long time. HIGH QUALITY : All parts are made of 304 stainless steel and provide a more stable, smoother and safer suspension. Due to the special hardening process, all these materials have good corrosion resistance and toughness. SUPER STRONG: 19cm long spring can load up to 160kg, perfect for all your heavy duty needs. The spring can relieve the shock stress when working and increase the service life of the mounting hardware. perfect kit to mount your hanging hammock or swing chair. COMFORT: The spring helps relieve shock stress, provides a more comfortable and softer feel, reduces noise and vibration, and will increase the life of your hammock. The swivel hook will attach securely to your hammock or swing chair, allowing you to twist and turn without getting tangled. EASY TO INSTALL: Simple assembly - With hooks at both ends, the spring porch swing is easily connected to your hammock chair without using any tools or complicated operation. Hammock kit - 1 hammock hardware spring, 1 360 swivel hook, 2 carabiners.