Disposable earplugs provide excellent noise-blocking performance for those who demand quality protection and comfort. Bell shape delivers maximum, in-ear comfort for extended use. Contoured design allows easy insertion and resists backing out of the ear canal. Smooth, soil-resistant skin helps prevent dirt buildup. Bulk refill bag is designed to refill Leight Source 400 and Leight Source 500 earplug dispensers (sold separately).