3M E-A-Rsoft FX Corded Earplugs, Hearing Conservation 312-1260 in Poly Bag Soft, pliable foam offers comfort for wearing over an extended time Bell shape allows easy fitting and removal Slow recovery foam effectively seals the earcanal and helps provide reliable hearing protection Noise Reduction Rating (NRR) of 33 dB, CSA Class AL Poly bag keeps each pair of earplugs clean before use