The MILWAUKEE® Replacement Foam Ear Plugs (5 Pack) are designed to provide all day comfort while working on the job site. These interchangeable, comfortable earplugs are compatible with the Milwaukee Banded Ear Plugs. The Nise-reducing earplugs are designed with a tapered shape to fit inside the ear canal, providing a Nise Reduction Rating (NRR) of 25. The soft, comfortable foam expands quickly in the ear for a secure seal to protect against hazardous Nise.