The OEM Aearo E-A-R Classic Ear Plug is designed for comfort and safety, featuring a Noise Reduction Rating (NRR) of 29 decibels. These corded ear plugs are made from dermatologically safe foam, ensuring they are gentle on the skin. The slow recovery foam provides comfort with low pressure, making them suitable for extended wear. Complies with ANSI S3.19-1974 standards for hearing protection.