E·A·R Peltor OPTIME 95 Behind-The-Head EarmuffsRated for noise levels up to 95 dBA, these muffs are ideal for manufacturing, landscaping and automotive applications. Ultra-light, behind-the-head design allows you combine the cans with your favorite pair of protective eyewear and/or your preferred hardhat. Pivoting stainless steel ear cups ensure a properly alligned, secure fit. Large liquid-filled foam ear cushions deliver enhanced wearing comfort. Color-coding enables at-a-glance compliance sighting. Material(s): Stainless Steel; Ear Cushion Material: Liquid-Filled Foam; Noise Reduction Rate (NRR): 21 dB.