3M™ E-A-R™ Push-Ins™ corded Push-to-Fit foam earplugs provide extended 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 earplugs are easy to use and comfortable. Poly bag keeps each pair of earplugs clean before use. Blue stem makes insertion and removal easy and helps keep the tips clean when the wearer's hands are dirty - 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™.