These 3M Corded Earplugs are made from soft polyurethane foam with a smooth, dirt-resistant surface for user hygiene and comfort. The disposable earplugs have a tapered design, which fits most ear canals. The orange earplugs are high visibility and also hypo-allergenic. The convenient polyester cord allows you to keep earplugs handy, removing and replacing as necessary. These earplugs conform to EN352-2:2002. This pack contains 100 earplugs. Attenuation: SNR=37dB, H=37dB, M=34dB, L=31dB.