With its bell-shaped design, 3M™ E-A-R™ E-Z-Fit™ corded foam earplugs provide a low-pressure seal for excellent attenuation and reliable, comfortable hearing protection. Rolls down easily and expands into the earcanal. Benefits •Poly bag keeps each pair of earplugs clean before use. •Ideal for smaller earcanals •Noise Reduction Rating (NRR)* 28 dB. CSA Class AL. •Test compatible with 3M™ E-A-Rfit™ Validation System.