Hanging Chair Suspension: The swing spring set includes 1 tension spring, 1 360 swivel hook, and 2 carabiners. All components are constructed from high-quality 304 stainless steel, offering high strength, corrosion resistance, rust-free performance, easy cleaning, and environmental protection. This set is ideal for use with hanging chairs in home, patio, balcony, or yard settings. Stainless Steel Tension Spring: The high-performance spring measures 15 cm in length and supports a maximum load of up to 250 kg. The coil spring features a unique suspension design that enhances the elasticity of your hanging seat without being too stiff or too loose. Attaching your hanging chair to the spring allows for gentler swinging motion. The spring helps reduce sudden jolts and ensures smooth, comfortable movement for safe and relaxing use with hanging chairs, swings, hammocks, or similar products. 360 Swivel Hook: Made of stainless steel, the swivel hook enables full 360-degree rotation. It is designed for applications requiring quick connection and smooth rotational movement. The double-ended swivel allows continuous rotation without tangling or twisting, while the snap hook securely attaches to your hanging lounger or hammock. Easy to Use: Simply open the snap hook to connect it to the hammock spring, then attach your hanging chair using the swivel hook. The entire setup can be completed in under 10 seconds without tools or complex steps. With hooks on both ends, the spring easily integrates with your hanging chair system. The carabiner features an active opening mechanism for quick attachment and provides a high safety factor. Multifunctional Indoor and Outdoor Use: This hanging chair spring set is compatible with various indoor and outdoor hanging products, including swings, hanging chairs, nest swings, ceiling hooks, hanging loungers, floating loungers, hammocks, yoga hammocks, punching bags, gym rings, and other heavy suspended items. Ideal for creating a comfortable space for relaxation or social enjoyment.