The life buoy using high density polyethylene for body, filled with high density polyurethane closed-cell foam. Plastic composite life buoy imported polyethylene for shell, filled with imported high-density polyurethane foam, anti-aging, according to GB production, fishery bureau of inspection and survey bureau inspection certificate,this product is suitable for inshore fishing vessels and river used on any ship. This product is one of the necessities of fishing enthusiasts, is all sorts of good partner ship group and inflatable boats.