This pack contains 50 units of disposable earplugs for hearing protection. The earplugs are made of soft polyurethane foam with SNR 36 dB protection. Very comfortable use, since they adapt perfectly to the ear cavities to protect them from harmful noises. To place these earplugs properly, you merely have to press softly with your fingers to insert them into the ear. Once there, the earplugs expand to fully adapt to your ears. Designed in orange, which makes them easily findable, including a cord for greater adjustment.