These bulk ear plugs are a great way to protect your ears during a wide variety of activities, providing a protection rating of 32db. They can be used for hunting, racing, concerts, and much more.. They are designed for single use and are not designed for small children. The low-pressure foam can be worn for extended periods of time in smaller ear canals. There are 200 individually packaged pairs per case. .. .. NRR 32 .. One-time use only .. Not for small children .. 200 pairs per case .. Priced per pair .. Individual packaging (in pairs). ..