8Inch Premium Heavy Duty Hammock Chair Spring Porch Swing Springs Hook, 2Pcs ? ?Upgraded Material? - Preferable spring steel material, made by precision workmanship, Galvanized surface treatment, beautiful and corrosion-resistant, long service life ? ?APPLICTIONS?- These heavy-duty hanging springs are tightly coiled for shock absorption. You can use them for swing benches, hanging chairs, hammocks, hammock chairs, and punching bag. ? ?PLUG AND PLAY?- Simply Connect to your hammock and accessories and go. No need for annoying instructions ? ?WEIGHT CAPACITY?- Hammock swing Heavy duty springs ,each porch swing springs can hold weight of 650lb. ? ?SAFETY?- The spring for swing with plastic cap are covered the end of the wire to prevent scratching fingers or hanging ropes.