3M E-A-Rsoft Yellow Neons Uncorded Earplugs, seal the ear canal with soft, slow-recovery foam for excellent noise reduction and reliable hearing protection. The tapered earplugs are easy to roll down and insert, then expand within the ear canal for a comfortable, secure fit. Earplugs come 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. These earplugs are commonly used in the following industries: agriculture, automotive, chemicals, construction, general manufacturing, healthcare, oil and gas, and pharmaceuticals. These earplugs have a Noise Reduction Rating (NRR) of 33 dB.