3M PD-01-001 EAR Classic Foam Ear Plug Refill Bottle - EN 352 - 500 Pieces

Polyvinyl foam.
Can be washed in warm water and used several times.
Closed cell structure allows the plug to expand gradually.
Transparent dispenser case gives a clear indication of when a replacement is required.
Fits the exact size of the ear canal.
Disposable and hygienic, whilst providing high levels of hearing protection.
Especially suitable in warm working conditions where perspiration can be a problem.