Tested according to ANSI S3.19-1974, Radians® made in the USA disposable foam 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 available in a corded and uncorded options and are conveniently packaged in individual polybags to keep each pair clean.