3M Personal Safety, 7100239692, E-A-R UltraFit Earplugs 340-3002, Corded, with Carry CaseFeatures:Soft material easily adapts to the ear canalDurable silicone is washable and reusable helping to reduce waste and costsThe three-flange design fits a wide range of ear sizesNo need to roll earplugs before fitting so the tips stay clean even if hands are dirtyNoise reduction rating (NRR) 25 dB. CSA Class ALCarrying case helps keep earplugs clean and accessible for re-useCloth cord for comfort and convenience3M™ UltraFit™ Silicone Corded Earplug offers convenient, corded comfort. Made from durable silicone this earplug includes a cloth cord and helps provide in-ear comfort and convenience with a Noise Reduction Rating (NRR) of 25 dB. The 3M™ E-A-R™ UltraFit™ Silicone Corded Earplug features a"no-roll", triple-flange design that provides quick, clean, and comfortable hearing protection. Simply hold the stem and push the earplug into the ear.The tip stays clean even if hands are dirty or gloves are worn. The earplug is washable and reusable so it doesn't need to be replaced as often, reducing waste and lowering costs. Individual plastic carrying cases keep earplugs clean prior to use. Recommended applications include assembly and mechanical, chipping, chiseling, cleaning, drilling, furnace operations, grinding, heavy equipment operations, machining, metal repair, painting, pouring/casting, power fastening, riveting, sanding, sawing and welding. These earplugs are commonly used in the following industries: construction, general manufacturing, mining, oil and gas, and transportation.These earplugs have a Noise Reduction Rating (NRR) of 25 dB and tests compatible with the 3M™ E-A-R fit™ Validation System. Not only is noise present in daily routines and recreational activities, but millions of Americans work in hazardous noise on a daily basis. 2015 estimates from the National Institutes of Health suggest that hearing loss afflicts 28 million Americans. About one-third of those cases are at least partially attributable to noise. Hearing loss due to noise is almost entirely preventable by judicious use of hearing protection.Unit of MeasureCase of 4 boxesQuantity Per Box80 pair.