Check the listing for details. Echo NRR31 Ear Plugs with Storage Case 103942210. Condition: New. Listed at 10.98 USD. Earplugs with Case When you're on the go protect those ears from harmful sounds emitted from outdoor power equipment use with ECHO's Travel Pack Earplugs (103942210). Designed for Pros and homeowners the ECHO earplugs are ANSI and OSHA approved and deliver an NRR 23 dB(A) rating to keep potentially harmful noise emissions from damaging hearing. Each set of earplugs is joined by a plastic string so they stay connected at all times and comes with a convenient clear carrying case with key ring to attach to a work belt, key chain or carabiner to keep them clean and ready to go when you are. Don't push safety side, especially when your hearing is involved. Protect your ears and give them a break from the sounds that can cause damage. TOP FEATURES NRR 23 dB(A) rating Lightweight and form-fitting Includes clear carrying case Listing and template services provided by inkFrog