The Range Ear Plugs feature an innovative integrated cord and clip system with 31dB Noise Reduction Rating for superior hearing protection. Made of comfortable polyurethane foam with a tapered design for easy insertion and hours of comfortable wear.Range Ear Plugs - 10-Pack Blue/Orange31dB NRR (Noise Reduction Rating) for excellent protectionIntegrated cord and clip system prevents lossTapered polyurethane foam design for comfort and easy insertionClip attaches to hat or shirt collar for convenient accessScrew cap bottle for convenient storage of unused plugsPerfect for shooting ranges construction sites concerts or any noisy environment where you need reliable hearing protection that won't get lost.