The Encore- line of ear plugs offer a soft, comfortable fit and optimal hearing protection with a 33 decibel noise reduction rating. These foam polyurethane (PU) ear plugs expand to fit snugly within the ear canal. The tapered design allows for easy insertion/removal and the bright orange color makes compliance checks easy. Encore- PU earplugs are produced in an ISO 9001:2000 Certified Facility to ensure consistent quality and performance., Orange Foam Polyurethane Ear Plugs, Noise Reduction Rating: 33 Decibels, One Pair Per Polybag, 200 Pairs Per Dispenser, Certification/Rating: ANSI S3.19-1974, EN 352-2.2002, prop65-warning : california-residents-proposition-65-warning-dehp/ California Residents – See Proposition 65 Information (DEHP)