3M E-A-R Classic Plus Ear Plugs Cordless One Size Fits Most Yellow - 200 Count BoxAbout 3M E A R Classic Ear Plugs (200 Units) Reusable Pillow Pack helps keep earplugs clean when they are not being worn Classic Plus earplugs are slightly longer than regular E A R Classic earplugs to fit deeper into the earcanal and provide higher noise reduction. Flame resistant and moisture resistant Test compatible with 3M E A Rfit Validation System Noise reduction rating (NRR)* 33 dB. CSA Class AL Description: Ear Plugs 3M E A R Classic Cordless