3M™ E-A-R™ Push-Ins™ Earplugs provide all-day hearing comfort convenience and protection. Constructed of 3M™ E-A-Rform™ foam these earplugs feature a no roll-down design and a blue stem for a quick and easy fit. These push-to-fit corded foam uncorded earplugs are easy to use again and again reducing waste. Proprietary no roll-down - Poly bag keeps earplugs clean before use- Blue stem makes fitting and removal cleaner and easier. Noise Reduction Rating (NRR): 28 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™.