3M E-A-Rsoft (TM) FX(TM) SERIES. Colour : Yellow with Orange Cord. Cord Material : Vinyl. Insertion Method : Roll-Down. Earplug Size : M. Noise Reduction Rating (NRR) : 33 dB. Pairs per Package : 200. Earplug Shape : Bell. Earplug Material : Foam. Standards : ANSI/ASA S12.71-2018