Tested according to ANSI specs S3.19-1974, Radians FP71 corded ear plugs feature soft, slow-recovery foam for extreme comfort and outstanding noise reduction to protect your hearing. They are easy to roll down and insert, and they expand slowly for a low-pressure fit in virtually any size ear canal. They are conveniently packaged in individual polybags to keep each pair clean. Radians foam earplugs have a tapered shape and offer the most natural fit and seal for the ear canal. Smooth shiny surface repels dirt. Low pressure, self adjusting foam offers long wearing comfort and quick recovery time.