Conforms to ear structure,safe and sanitary<br>Made from polyurethane foam,smooth and ultra supple; superior noise reduction effect, let operators keep acute hearing in noise ambient.<br>Packed by OPP bagConforms to ear structure,safe and sanitary<br>Made from polyurethane foam,smooth and ultra supple; superior noise reduction effect, let operators keep acute hearing in noise ambient.<br>Packed by OPP bagConforms to ear structure,safe and sanitary<br>Made from polyurethane foam,smooth and ultra supple; superior noise reduction effect, let operators keep acute hearing in noise ambient.<br>Packed by OPP bag