Use these corded, reusable earplugs to protect ears against noises at or exceeding 85 decibels. Design features a triple-flange design for comfortable, snug fit over a long period of time. Earplugs are corded to reduce the chance of losing your earplugs or having them fall into your work area. Earplugs are reusable and washable. They also include a handy storage case. Noise reduction rating is 25 decibels.