The Laser Lite ear plugs are brightly colored, individually packed ear plugs designed to seal off the ear canal from dangerously loud and obnoxious sound waves. With a NRR of 32 dB, you can be sure you are getting the protection you need. But furthermore, this product brings safety, economics and user fatigue at the forefront. Brightly colored to reinforce ear protection rules Resistant to dirt, grime and soil Contoured to maximize wearer comfort Expands to seal the ear canal from dangerously load sounds Disposable Uncorded Noise Reduction Rating: 32dB Highly vibrant colors make ear protection visible and easy to enforce. Self-adjusting polyurethane foam expands and conforms to the ear canal. Contoured T-shape allows for easy insertion and removal. Smooth, soil-resistant closed cell walls prevent dirt build-up. Ear plugs expand to fit most users.