The 3M™ E-A-R™ UltraFit™ Earplugs are reusable and designed for insertion into the ear canal to help reduce exposure to hazardous levels of noise up to 32 dB.Get comfortable, durable and reusable hearing protection with 3M™ E-A-R™ UltraFit™ Earplugs. A proven triple-flange design made of a pliable premoulded elastomeric polymer fits most ear canal sizes