Non-Corded EarplugsThe non corded earplugs offered by feature a noise reduction rating (nrr) of 33. The soft foam earplugs offer superior comfort and outstanding protections; and the tapered shape makes it easy for insertion. Hygienic USe once and discard compliant to ANSI S3. 19 1974 carries CE certified symbol on box & individual poly bags each pair is individually wrapped in a poly bag. 200 pairs per box. The non corded earplugs offered by feature a noise reduction