OEM Hearing Protection Earplug NSN1376345 made from nonallergenic polyvinyl chloride foam, providing excellent sound attenuation. These earplugs expand to fit the size and shape of the ear canal, ensuring a secure fit. Bright colors enhance visibility for compliance checks, and they feature a Noise Reduction Rating of 29 dB. Each box contains 200 earplugs, making them ideal for workplace safety and hearing protection.