3M Professional Sleep Series Ear Plugs. Innovation: anti-fouling surface layer (increasing the number of uses) Material: Safe and efficient sound-absorbing foam Color: Fluorescent Green Use: Rubbing earplugs Noise reduction: NRR: 33dB SNR: 36dB Packing: one pair/package (independent sealed packaging) Featuress: Anti-noise elastic earplugs. Automatically adapt to the ear canal for comfortable wear. High density, porous sound absorption. Individual packaging, clean and hygienic. Comfortable to wear and rigorrously tested. #3M #3mEarplugs #Earplugs #3m312-1201 #AntiNoise #Sleeping