Fusion® Multiple Use Earplug, Thermoplastic Elastomer,Blue White, Corded ORS NASCO [Nom] 6 in Face Width [Nom] 6 in Face Width 3 6 in Hazmat NO Jan San Catalog NO No foam block broom head is constructed for durability and versatility Non absorbent synthetic bristles Effective for wet or dry sweeping applications Lighter than hardwood blocks Color coded bristles tapered shape fits better in the ear canal Firm stem facilitates easy insertion and removal Four flange profile creates better seal in the ear canal Less pressure in the ear canal eliminates that “plugged up” feeling Advanced air pocket design features internal noise blocking fins Rounded flanges