Howard Leight Uncorded Pre Shaped Foam Shooting Earplugs offer the best hearing protection for shooting for 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. Suitable for use as shooting earplugs at the range or hunting earplugs in the field. There are 100 pairs of earplugs per pack.