3M 410-3019 E-A-R Hi Fi Earplugs Hearing Conservation, 1 Pair

Allows the wearer to hear clearly while a portion of the loud noise or sound is attenuated. Built-in tuned resonator and acoustic resistor. Ideal where it is necessary for people to communicate with each other and still have some protection from excessive noise. 12 dB NRR. One size fits all. Vented design reduces blocked up feeling. Washable. Comes with carrying case.