3M 311-1106, E-A-R Classic Plus tappi per le orecchie, con cavo, sacchetto in polietilene, NRR 33 dB, 1 paio
The 3M™ E-A-R™ Classic™ Earplugs set the industry standard for personal safety noise reduction as the worlds first foam earplug. Soft, slow-recovery foam is designed to mold to the shape of the ear canal and provide hearing protection.