The Howard Leight MaxCorded Earplugs are premium foam Earplugs that are pre-shaped foam featuring a smooth outer skin for maximum user comfort. The smooth, soil-resistant skin helps prevent dirt from penetrating the surface prior to insertion. Attenuation tested in accordance with ANSI S3.19-1974. Conforming to: EN352:2020 SNR 38, they are supplied in a pack of 100.