Advanced "no roll" corded push to fit foam earplugs with paddle style grips make getting a good fit easier than ever. Unique foam formula allows earplug insertion without rolling. Foam tips stay clean, even when your hands are dirty. Slow recovery foam inserts easily, then seals the earcanal for comfortable hearing protection. Reusable Pillow Pack helps keep earplugs clean when they are not being worn. All Blue Grips Yellow Foam Noise Reduction Rating (NRR)* 25 dB. CSA Class AL. Test compatible with 3M™ E A Rfit™ Validation System *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™.