Specifically packaged for vending application. 3M™ E-A-R™ Classic™ corded foam earplugs set the standard in hearing protection as the world's first foam earplugs. Constructed from slow-recovery foam, these disposable earplugs are uniquely moisture-resistant.. Benefits •Specifically packaged for vending application •Clear bag allows product visibility for proper selection •Internal card for compliance with EPA labeling and other regulations •Flame-resistant and moisture-resistant •Noise Reduction Rating (NRR)*: 29 dB CSA Class AL •Test compatible with 3M™ E-A-Rfit™ Validation System