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. Benefits 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