Rock Out With Mack’S® Blackout® Ear Plugs! Safe, Comfortable Hearing Protection Fashionable, Discreet Color Molded With State-Of-The-Art, Super Low-Pressure Foam Fully Skinned And Tapered, Providing Unmatched User Comfort And Hygiene Great For Concerts, Jam Sessions, Nightclubs, Etc. #1 Doctor Recommended Brand To Prevent Hearing Loss Noise Reduction Rating (Nrr) – 32 Decibels