3M E A R Push Ins Corded Earplugs feature soft and flexible E A Rform Foam that inserts quickly and easily into the ears for comfortable noise reduction. The push to fit design with a flexible stem helps keep the soft foam tip clean, even when hands are dirty, since there is no need to roll the foam before fitting. Cord allows earplugs to be stored conveniently when earplugs are worn intermittently. Earplugs are packaged in a poly bag to keep them clean prior to use. Recommended applications include assembly and mechanical, chipping, chiseling, cleaning, drilling, furnace operations, grinding, heavy equipment operations, machining, metal repair, painting, pouringcasting, power fastening, riveting, sanding, sawing and welding. Soft polyurethane earplugs have a Noise Reduction Rating (NRR) of 28 dB and are test compatible with the 3M E A Rfit Validation System.