Product Details The DEWALT DPG65 Bell Shape Corded Disposable Foam Earplugs are tested according to ANSI specs S3.19-1974 and feature soft slow-recovery foam for extreme comfort and outstanding noise reduction to protect your hearing. Bell shape offers versatility and a comfortable fit for a larger range of individual ear canals. Flange provides a more consistent fit. Extremely Soft Foam Plug. Provides a comfortable low-pressure fit. PVC Dielectric Cord NRR 33dB