Earmuffs X4P3E/37278(AAD), Earmuff Style Hard Hat-Mounted, Noise Reduction Rating 25 dB, 26 dB, 27 dB, Dielectric No, Cushion Material Foam, PVC, For Use With H-700 Series Hard Hats, Industrial Safety Helmets, Series X, Standards ANSI/ASA S12.71-2018,...