Description Peltor X Series X4 Earmuffs | 3MCompatible with 3M Peltor Full Brim Hard HatsDielectric attachments help protect against arc flash and other electrical hazardsLow-profile ear cup design for improved compatibility with other personal protection equipment (PPE)Soft, wide ear cushions help reduce pressure around the earsReplaceable ear cushions and liner - use the 3M Peltor Hygiene Kit HYX4Style: Cap MountCSA Class: ANRR dB: 26Colour: BlackSize: One Size Fits Mos