The Maritime Rescue Life Buoy features high-density solid foam filling with premium Oxford cloth covering, specifically designed for maritime emergency rescue. Available in three specifications: outer diameters 52cm/60cm/72cm, inner diameters 27cm/35cm/44cm, providing buoyancy of 8kg/15kg/18kg, suitable for individuals weighing 25kg-90kg. Lightweight design weighing only 0.21kg-0.43kg for quick throwing and carrying. Blue-white, orange-white, red-white, and camouflage color options with high-visibility coloring for easy identification in maritime environments, suitable for maritime rescue, coastal patrol, and ocean voyages, providing professional rescue support for maritime departments, coast guard, and commercial fleets.