3M E-A-R E-Z-Fit uncorded foam earplugs help provide a soft, comfortable sound barrier for excellent noise reduction and reliable, comfortable hearing protection. Soft, smooth, bell-shaped foam earplugs are made of PVC foam that offers comfort with low pressure. Poly bag keeps each pair of earplugs clean before use. The yellow color offers high visibility and the moisture resistant foam is flame retardant which is critical for storage. It adjusts to the shape of the ear canal while generating a snug noise barrier with a 28 dB Noise Reduction Rating (NRR).