Inspected and tested in accordance with U. S. Coast Guard regulations.  All rings contain unicellular polyurethane foam for buoyancy.  Floating polypropylene grab lines are secured inside the foam core and contain UV stabilizers to ensure sunlight resistance.  Molded-in becket design means there are no straps to wear, mildew, or deteriorate.  Choose between energy absorbent vinyl skin or tough, hardshell polyethylene skin.  SOLAS approved models equipped with reflective tape.