Optimized for exceptional in-ear comfort, AirSofts four flanged design creates a better seal in the ear canal. The Howard Leight AirSoft earplugs deliver optimal protection and increased comfort for long-term wear. Internal fins create an interlocking, noise-blocking barrier within the air pocket. Providing dependable attenuation for all wears upon proper insertion. Howard Leight AirSoft earplugs also feature a firm stem and tapered shape that make for easy insertion and removal. The Howard Leight AirSoft earplugs provide a 27db Noise Reduction Rating (NRR 27) . Package includes 100 pairs of white nylon corded AirSoft earplugs packaged in individual flip-top boxes.