3M E-A-R Classic 311-4101 Corded Earplugs, Metal Detectable (200 Pair)
The most popular earplug in the world in a metal-detectable form. The Classic Earplug, with dermatological safe foam, provides a comfortable seal, exerts little pressure on the ear, and has the highest available NRR 33 dB. Both the cord and the plugs are metal detectable. 200 pair per box.
- Most popular earplug in a metal-detectable form
- Dermatological safe foam provides a comfortable seal
- Highest available NRR 33 dB
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