E-A-R EXPRESS Pod Plugs Disposable Corded Ear Plugs, NRR 25 dB, M, Blue, 100 PairsMfr #: 311 1127 Implanted stainless steel ball bearings aid in locating lost earplugs Designed for food processing and other industries where it is critical to keep earplugs from contaminating products and processes Paddle style grips provide quick, clean, and consistent placement of earplugs No roll design keeps fingers, earplugs, and ears clean Noise reduction rating (NRR) 26 dB CSA Class AL Test compatible with 3M E A Rfit Validation System