E-A-Rsoft Yellow Neons Blasts earplugs seal the ear canal with soft, slow-recovery foam for excellent noise reduction and comfort. They are easy to roll down and insert. The soft polyurethane plugs are also decorated with exciting flame graphics. Poly bag keeps each pair of tapered foam earplugs clean before use. Regular size fits most ear canals. Uncorded earplugs are test-compatible with 3M E-A-Rfit Validation System and offer a Noise Reduction Rating (NRR) of 33 decibels.