Innovative, Safe Hearing Protection With A Noise Reduction Rating (Nrr) Of 20 Decibels, These Ear Plugs Help Reduce The Potentially Harmful Effects Of Loud Music And Noise While Allowing Clearer Sound Over Standard Foam Earplugs. Softer, Clearer Acoustics Innovative Hollow-Cut And Grooved Design Provides Clearer Acoustics And Allows For Improved Communication. Extreme Comfort Made With Super-Low Pressure, Slow Release, Comfortable Foam. Provides Comfort, Even For Small Ear Canals. Convenient Travel Case Keeps Your Earplugs Clean And Ready-To-Go. Great For Concerts, Jam Sessions, Festivals, Nightclubs, Shop Work, Loud Events, Loud Office Spaces, Etc. Usa's #1 Doctor Recommended Brand Of Foam Earplugs To Protect Hearing Or Prevent Hearing Loss. Fully Enjoy Concerts And Events While Bringing Dangerous Noise Down To Safer, More Comfortable Levels. Directions For Use With Clean Hands, Hold Earplug Between Thumb And Forefinger. Roll And Progressively Compress The Entire Tapered End Of The Earplug To A Small Wrinkle-Free Cylinder. To Ensure Fitting, Reach Hand Over Head And Gently Pull Ear Upward And Outward. Insert Compressed, Tapered End Of Earplug Well Inside Ear Canal. Hold 30 - 60 Seconds Until Earplug Expands. Release, Then Push In Again For 5 Seconds To Ensure Fit. Remove Earplug Slowly. Use A Gentle Twisting Motion To Gradually Break The Seal. Rapid Removal May Damage Eardrum. Discard After Several Uses Or As Soon As Dirt Or Wax Accumulates On Earplugs. Specification Material: Urethane Foam Colour: Beige Noise Reduction Rating: 20 Db Origin: Sweden Package Contents: 1 Pair Mack's Acoustic Foam Earplugs Corded; 1 Travel Case