Howard Leight by Honeywell Fusion Corded Reusable Earplugs use advanced manufacturing technology to deliver a revolutionary combination of all-day comfort and easy handling. The FlexiFirm inner core ensures a secure fit throughout the day, and the FlexiFirm stem allows for easy earplug insertion and removal. The patented SoftFlange outer fins adjust easily to the ear canal for unmatched comfort and superior hearing protection with a Noise Reduction Rating of 27. The detachable nylon cord allows the earplugs to adapt to virtually any work application. All Fusion Earplugs come with the unique HearPack storage case to keep the earplugs clean and to help prevent loss or misplacement.