3M e-a-r soft yellow neons earplugs, uncorded, poly bag, 312-1250, 200 pairs 3M e-a-r soft yellow neons earplugs seal the earcanal with soft slow-recovery foam for excellent noise reduction and comfort. Benefits: poly bag keeps earplugs clean before use regular size fits most earcanals noise reduction rating nrr 33 db. Csa class al test compatible with 3M e-a-r fit validation system