Whether you're shooting bullets, working an airboat, or pounding concrete, pre-shaped compressible foam ear plugs provide both protection and comfort. The ear plugs expand after insertion for custom fit, and their soil resistant finish keeps material soft, clean and comfortable. Flared end allows for easy removal, and they are non-toxic and washable for continued use. With noise reduction rating of 33dB, they are the highest attenuating ear plug on the market. Tested according to ANSI S3.19-1974.R1979. They are individually packaged in pairs and delivered in a recycled cardboard dispenser box.