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Quattro is a universal size reusable ear plug, designed to be used over and over again, with maintained comfort and effectiveness.

Specifications:

- Includes: key-chain, plastic case and 1 pair
- Corded ear plugs
- A four flange design that allows this ear plug to fit almost all ear canals. An ultra-soft polymer provides a comfortable and effective seal
- A sturdy and stiff handle that allows an easy grip for insertion and removal
- Material is resistant to ear wax and body oils and will outlast PVC ear plugs
- Polymer is non-allergenic and non-irritating to the sensitive skin in the ear canal
- Noise Reduction Rating is 25 dB, and the test was performed to ANSI S3.19-1974 at an independent and certified laboratory
- European Single Number Rating is 26 dB, and testing was performed at an independent and certified laboratory.