Radians Snug Plugs Reusable Corded Earplugs- The Noise Reduction Rating is 28dB on these reusable earplugs. They use non-toxic materials, and are made in the USA. They can be washed and reused. The ribbed shape offers extra noise reduction. The plugs come tethered in a convenient case. Made in the USANon-toxicWashableIncludes carry case and connection cordNRR 28