NEW SILENT NS-1001A disposable polyurethane foam earplugs protect workers and anyone in noisy environments from high noise levels by attenuating continuous noise (e.g. industrial, ambient) and impulse noise (e.g. gunshots, impact noise). Their shape fits most ear canals. Packed one pair per sachet, 200 pairs in a dispenser box. EN 352-2:2002; SNR=34 dB, H=34 dB, M=31 dB, L=39 dB.