1. Provide a safer and more effective connection for the trailer, because it will not rust, wear or damage when towing, so that you and the trailer are safer when towing 2. Made of high-quality materials, the product is not easy to corrode, oxidize, rust, and has a long service life 3. Installation location: at the trailer joint 4. Scope of application: trailer/RV 5. Specifications: Safety buckle: M8x80/M10x100 Spring rope: diameter 2.5mm×1.5m 6. Material: Spring rope: galvanized PVC coated Safety buckle: 304 stainless steel