OEM E-A-Rsoft Yellow Neons uncorded earplugs designed for regular size, fitting most ear canals. These earplugs are easy to roll down and insert, expanding within the ear canal for maximum comfort. Made of soft foam, they provide a Noise Reduction Rating (NRR) of 33 dB, classified as CSA Class AL. They are also test compatible with the 3M E-A-Rfit Validation System.