3M E-A-Rsoft AV 311-4110 Corded Earplugs, Metal Detectable (200 Pair)
- Implanted stainless steel ball in the earplug
- Standard cord, not metal detectable
- Polybag keeps each pair of earplugs clean before use
- Regular size fits most ears
- Noise Reduction Rating* (NRR): 32 dB. CSA Class AL
- Test compatible with the E-A-Rfit Validation System
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