The 3M E-A-R UltraFit corded earplugs features a proprietary, premolded, triple-flange design that fits comfortably in most earcanals. Ergonomic pistol grip for an easier fit.Polymer formulation gently hugs the earcanal to provide an effective seal that protects against noise. - Ergonomic pistol grip for an easier fit - Triple-flange provides proven protection without rolling or touching plug during insertion. - Conforms well to the ear's natural oval shape. - Washable and reusable. - Corded Earplugs - Noise Reduction Rating (NRR)*: 27 dB. CSA Class AL *The NRR may overestimate the hearing protection provided during typical use. 3M recommends reducing the NRR by 50% for estimating the amount of noise reduction provided. 3M is Leading the Advancement of Hearing Conservation.