3M™ No-Touch™ uncorded Push-to-Fit foam earplugs create a hygienic, noise reducing seal in the earcanal with soft foam, a smooth tapered shape and paddle stems. Push-to-Fit design makes fitting hearing protection easy. These Push-to-Fit foam earplugs create a hygienic, noise reducing seal in the earcanal with soft foam, a smooth tapered shape and paddle stems. Push-to-Fit design makes fitting hearing protection easy. Push-to-Fit style means no earplug roll down required - soft purple foam is fused with the livewire stem. Foam tips stay clean, even when your hands are dirty. Noise reduction rating (NRR)- 29 dB CSA class A. 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™.