Ideal for long-term users and those with smaller ear canals MAX-LITE (NRR 30) low pressure foam earplugs offer long-term user comfort not found in other pre-shaped foam earplugs. The non-irritating, non-allergenic self-adjusting foam recovers to fit virtually any ear canal. MAX-LITE is also ideal for that portion of the population with smaller ear canals. Attenuation tested in accordance with ANSI S3.19-1974. Available in uncorded box of 200 or corded box of 100.