Airsoft® features patented cushion of air in the tip of each plug for the ultimate in comfort and a four flange design for superior attenuation. Molded from a specially formulated material for durable and hygienic long-term use. Economical reuse when regularly cleaned with soap and water for months of continued protection. Each pair is individually packaged in a clear flip-top box. Cotton cord. NRR 27dB. Tested to ANSI S3.19-1974 standard. 100 pair per box. Sold by the Box.