Usage Tips:Features: Provide excellent shock absorption effect, extend the service life of hanging chairs and Swing, and ensures safety and comfortable. Adopting high-strength galvanizing process, rusts proof and durability. Excellent elasticities, easy installation, suitable for various suspension devices. Suitable for family users, children's playgrounds operators, and outdoor leisures facility managers. Widely used in hanging equipment such as courtyards Swing, indoor hanging chairs, outdoor hanging basket, and fitness sandbags. Specifications: Color:Nine Elections Buffers spring: 15cm/5.9in Rotating hoop: 8.6cm/3.38in Spring buckles: 8cm/3.14in Component:Galvanizing Note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Package includes: 1pc Stainless Steel Hanging Spring