Feature a no-roll, triple-flange design that provides quick, clean, & comfortable hearing protection. Simply hold the stem & push the earplug into the ear. The tip stays clean even if hands are dirty or gloves are worn. The soft polymer earplugs are washable & reusable so they dont need to be replaced as often, reducing waste & lowerings costs. Poly bag keeps earplugs clean prior to use. Recommended applications include assembly & mechanical, chipping, chiseling, cleaning, drilling, furnace operations, grinding, heavy equipment operations, machining, metal repair, painting, pouring / casting, power fastening, riveting, sanding, sawing & welding. These soft polymer earplugs are test compatible with the 3M E-A-Rfit Validation System & have a Noise Reduction Rating (NRR) of 25 dB. However, research suggests that many users will receive less noise reduction than indicated by the NRR due to variation in earplug fit, earplug fitting skill, & motivation of the user. It is recommended that the NRR be reduced by 50% to better estimate typical workplace protection. Corded / Cordless: Corded; Shape: Multi-Flange; Material(s): Elastomeric Polymer; Noise Reduction Rate (NRR): 25 dB.