Howard Leight by Honeywell AirSoft Uncorded Earplugs feature a four-flange design that provides a better seal in the ear canal and offers increased comfort for long term wear. Earplugs deliver dependable attenuation upon proper insertion with the help of internal fins that creates a noise-blocking barrier within the air pocket. Plugs feature a stiff stem with a tapered design that facilitates easy insertion and removal and exerts less pressure in the ear canal that eliminates the plugged up feeling. Earplugs find a number of applications in agriculture and farming, airport ground crews, building construction, food and beverage processing, forestry, general contractor, landscaping, lumberwood products, metal fabrication and more. The noise reduction is rated at 27 dB.