according to ANSI specs S3.19-1974, Radians Made in the USA disposable foam
earplugs 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
packaged in individual polybags to keep each pair clean.