3M Earplugs Refill Bottle with 500 Pairs of Uncorded SNR 37 dB Earplugs 1100DThe 3M 1100 Earplugs are disposable foam earplugs designed for insertion into the ear canal to help reduce exposure to hazardous levels of noise up to 37 dB. Get comfortable hearing protection with 3M 1100 Earplugs. Easy to roll down and insert, their tapered design helps provide a noise reducing seal in the ear canal. Made with a soft, hypoallergenic foam they react and soften with your body temperature offering a longer more comfortable wear. Fully