Heavy-Duty Chrome Springs For Hanging Chairs Ceiling Mount Porch Swings Punching Hold Up to1600 lbs - Our swinging springs are made of high-quality steal, heat treated, zinc-plated. per set porch swing spring can hold weight of 1600lbs, one piece weight capacity of 800lbs New Upgraded Material - Preferable spring steel material, made by precision workmanship, Galvanized surface treatment, beautiful and corrosion-resistant, long service life Widely Use - The Hammock Hanging Kit Safe for Hammock Chairs, swing benches, hanging chairs, hammocks, hammock chairs, and punching bags, sling trainer, Yoga and more. you can also use it for industrial application where need reduce vibrations and avoid shocks Safety Design - The spring for swing with plastic cap are covered the end of the wire to prevent scratching fingers or hanging ropes, which also prevents springs from falling off from the hokes. The premium heavy duty wire ensures never broken under heavy load Excellence Guaranteed - We offer 24 Months warranty, true worry-free shopping experience. If you are dissatisfied with this item in any way, you can exchange it according to our Return and Exchange Policy or get a full refund. we will try our best to solve your problems