The HWAYAN Lifebuoy Ring, model HY5555, is a safety device designed for marine emergencies. It has a buoyancy of 142N and weighs 2.5KG, with an inner diameter of 445mm and an outer diameter of 713mm. Made with a durable HDPE crust and filled with rigid polyurethane foam, it meets the SOLAS 1974 requirements, as amended. This lifebuoy is essential for providing immediate assistance to individuals overboard, ensuring safety and compliance with marine regulations.