Super Leight pre-shaped single-use foam earplugs offer the best hearing protection for shooting of any single-use earplugs (33 NRR). The pre-shaped, contoured foam is designed to fit almost any ear canal for comfortable all-day wear. A closed-cell outer layer prevents dirt from building up. These earplugs are suitable for use on the range or in the field. 100 pairs of earplugs per pack.FeaturesHighest noise reduction rating of any single-use earplugsBell shape matches contours of your inner ear to ensure maximum noise reduction and resist tendency to back out of ear canalSmooth, soil-resistant closed-cell foam skin helps prevent dirt build-upPolyurethane foam enhances comfort, especially for long-term wear; 100 pairs of earplugs per packNoise Reduction Rating: 33