3M™ E-A-Rsoft™ Yellow Neon Blasts™ earplugs in a refill container for One Touch dispenser 391-1000 (sold separately). Yellow Neon Blasts earplugs seal the earcanal with soft, slow-recovery foam for excellent noise reduction and comfort. Exciting flame graphic on each earplug. Shaped, self-adjusting foam provides a comfortable, low-pressure seal. Soft foam earplugs are easy to roll down and insert, then expand within the earcanal for maximum comfort. Noise Reduction Rating (NRR)*: 33dB. CSA Class AL. *The NRR may overestimate the hearing protection provided during typical use. 3M recommends reducing the NRR by 50% for estimating the amount of noise reduction provided.