... PU earplug with EN352-2 CE Certification 2,quality assurance 3,superior services 4,reasonable price 5,promptly supplies 1, Description: PU foam ... before shipment.L/C at sight 4, Material: PU Foam5, Daily output: 100,000 pairs per day. ... environment8, Cord: all the earplugs can come with cord or without cord 9, Package: opp ... also print logo on the surface. PU Foam Earplugs with Aluminium Airpower2011