The HWAYAN Lifebuoy Ring, model HY5555-4, is a safety device designed for marine emergencies. With a weight of 4.3 kg, it provides a buoyancy of at least 142N, ensuring it can support individuals in the water. This lifebuoy ring meets the SOLAS 1974 standards, as amended, and is constructed with a durable HDPE crust and a rigid polyurethane foam filler. It is suitable for all types of vessels and watercraft, aiding sailors and passengers in life-saving situations.