3M e-a-r taperfit ii earplugs, uncorded, poly bag, 312-1219, 200 pairs 3M e-a-r taperfit 2 regular -size uncorded foam earplugs feature smooth foam that expands in the earcanal to help proide comfortable hearing proection. benefits: noise reduction rating nrr: 32 db. Csa class al test compatible with 3M e-a-r fit validation system