Sturdy steel hammock and heavy-bag spring set designed for long-lasting support and reliable suspension. Key benefits Durable, high-strength construction: Made from sturdy steel with electric surface galvanising for corrosion resistance and long service life. Heavy-duty load support: Industrial-grade long spring spiral and robust structure absorb shock and reduce stress on anchor points for safer use with heavy loads. Secure, tangle-resistant connection: Includes a heavy duty swivel hook to reduce twisting and tangling during use, keeping hanging chairs and bags aligned. Versatile replacement and upgrade: Designed as replacement springs for hammocks, porch swings, hanging chairs and other suspended accessories. What makes it stand out Industrial-grade spiral spring: Long, high-performance spring design crafted for heavy bags and dynamic loads. Professional-grade materials: High-strength steel construction with electric surface galvanising for lasting strength and corrosion protection. Practical swivel hook: Heavy duty swivel helps maintain rotation control and prevents line tangling, improving safety and user experience. Function and compatibility Function: Spring suspension and shock absorption between anchor point and hanging item; provides safer, smoother motion and strain relief. Compatible with: Hammocks, hanging chairs, porch swings, rocking chairs, punching bags, hanging plants and similar suspended accessories that require a spring and swivel hook connection. Use as replacement parts or as upgrade hardware for existing hanging setups. Performance highlights Shock absorption reduces jolts and prolongs life of hanging gear and mounting hardware. Robust spiral and swivel configuration handle frequent movement and dynamic loads typical of swings, heavy bags and occupied chairs. Electric surface galvanising helps resist rust when used outdoors or in humid environments. Typical use scenarios 1) Porch swing or hanging chair: Install the spring between your ceiling anchor or wall hanger and the swing’s top ring to add shock absorption, reduce stress on fasteners, and prevent twisting during use. 2) Home gym heavy bag: Attach the industrial-grade spiral and swivel hook to secure a punching bag to a ceiling or beam while minimizing twisting and dissipating impact forces. 3) Hanging plants and accessories: Use the spring to protect mounting hardware from sudden jerks from wind or movement while allowing safe, controlled sway. What to expect in use Lightweight yet strong: Engineered to be light enough for easy installation while maintaining a robust structure for safe support. Easy replacement: Fits standard hanging hardware setups that use springs and swivel hooks; installs quickly with common mounting anchors and carabiners. Reliable performance outdoors or indoors thanks to galvanised steel finish. If you need a dependable, professional-grade spring and swivel solution for hammocks, hanging chairs, heavy bags or other suspended accessories, this high-performance steel spring assembly offers durability, shock absorption and reduced tangling for safer, smoother use.