3M EAR Classic 3M Classic Earplugs 50 Pairs

---------------------------------------------------------------------- 3M Classic 50 pair set (each pair is individually wrapped in vinyl so it is clean until just before use) Long standard earplugs that have been used by the US military for 30 years. The material is PVC foam. Cylindrical earplugs provide a certain level of sound insulation performance without having to be inserted deep into the ear, making them ideal for use by unspecified people. Sound insulation performance (29dB) pursues high soundproofing effect and comfort, and maintains a comfortable fit. While it suppresses noise and background noise, it is still at a level that allows you to hear someone talking to you next to you. We will distribute a PDF version of the Japanese simple manual to purchasers by email upon request, so please contact us from your Amazon account. I will attach the PDF file to the reply email. [Product Name] 3M Classic This is an official genuine product distributed around the world.