Description DuraPlugs Disposable Foam Ear Plugs, NRR 32, Corded, 100 Pair/Box Super-soft, slow-recovery tapered bullet-shape foam slides in fast and easy. Low pressure, self-adjusting foam for long wearing comfort. Noise Reduction Rating (NRR): 32dB. Complies to ANSI S3.19 High-visibility orange color to help supervisors see that workers are compliant. Corded style means they are always with you and are less likely to be separated and fall into food. Individually wrapped per pair. 100 pairs per box.