SPECIFICATIONS UL STYLE""MARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" FOR NOISE LEVELS UP TO 95 DBA. STAINLESS STEEL CONSTRUCTION RESISTS BENDING AND WARPING. EARCUP PIVOT POINTS TILT FOR OPTIMUM COMFORT AND EFFICIENCY. NOISE REDUCTION RATING (NRR) 21DB. CSA CLASS B. 3M PELTOR OPTIME 95 BEHIND-THE-HEAD EARMUFFS FEATURE LOW-PROFILE EARCUPS THAT FIT WELL WITH MOST HELMETS EYEWEAR AND OTHER SAFETY EQUIPMENT. PROVIDES EFFECTIVE HEARING PROTECTION AGAINST HIGH-FREQUENCY NOISE.