3M 340-4002 Ultrafit Corded With Case.
- Premolded, triple flange earplug fit comfortably in a wide range of ear sizes.
- No need to roll earplugs before fitting so the tips stay clean even if hands are dirty.
- Soft polymer is washable and reusable, reducing both waste and costs.
- Noise reduction rating (NRR) 25 dB. CSA Class AL.
