3M 1100R Foam Ear Plug Dispenser Refill (Pack of 2000)

1100 Series Ear Plugs Dispenser Refill Pack. The comfortable foam plugs Uncorded version 3M 1100 are soft, disposable, polyurethane foam earplugs offering excellent protection. Soft polyurethane foam offers maximum wearer comfort, Smooth dirt-resistant surface. Tapered design fits most ear canals. Attenuation: SNR=37dB, H=37dB, M=34dB, L=31dB