These durable, corded reusable earplugs are a great choice for hearing protection in industries such as food and pharmaceutical processing. Push to fit products provide in ear comfort and convenience, with the hearing protection you expect from 3M. Econopack gives you the best value—with savings of up to 20%—and earplugs are easy to use again and again, reducing waste. Metal detectable ball bearing for high detectablility. Push to fit style for easy and hygienic fit. Single size fits comfortably in most earcanals. Proprietary, premolded, triple flange earplug design inserts easily. No rolling or sizing needed to get a comfortable, protective fit. Soft polymer is washable and reusable. Noise Reduction Rating (NRR)*: 25 dB. CSA Class AL *The NRR may overestimate the hearing protection provided during typical use. 3M recommends reducing the NRR by 50% for estimating the amount of noise reduction provided. 3M is Leading the Advancement of Hearing Conservation™.