Howard Leight Pre-Shaped Foam Earplugs with Carrying Case 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 5 pairs of earplugs per pack.