Stainless steel band construction resists bending and warping to offer consistent pressure over prolonged wearing periods. The ear cup pivot points tilt for optimum comfort and efficiency, while theuniversal mounting attachment fits most hard hats. Black/Chartreuse. NRR: 25 dB. Hygiene kit (sold separately) includes one pair of replacement cushions and foam inserts for 3M Peltor X4P3E earmuffs. 10/case.