3M 340-4003 Multiple Use UltraFit Triple-Flange Elastomeric Polymer Uncorded Earplugs (1 Pair Per Poly Bag, 100 Pair Per Box) (100/PR) Challenger Kitchen * A stimulating

* A stimulating

2-1/2" diameter attachment holes

600 lb gate strength and 5

There is elastic at the hood

while the optional ESP Mask Communications System provides voice amplification and/or interface with two-way radios

3M 340-4003 Multiple Use UltraFit Triple-Flange Elastomeric Polymer Uncorded Earplugs (1 Pair Per Poly Bag, 100 Pair Per Box) (100/PR) Challenger Kitchen * A stimulating3M EAR UltraFit The most comfortable, reusable earplugs in the world, with an impressive NRR of 25db. Whats equally impressive is that the new design feels even better in the ear. The curved flanges gently hug the ear canal to provide an effective seal against noise that remains comfortable all day long.