Ear Muffs, Earmuff Style Hard Hat-Mounted, Noise Reduction Rating 26 dB, Dielectric No, Cushion Material Foam, Polyethylene, Vinyl, Compatible Manufacturer Model Number 1012000, For Use With Hard Hats, Kit, Includes Adapter CP5007, Cup Color Black/Red, Series Leightning(R), Earmuff Type Rigid, Standards ANSI S3.19-1974, AS/NZS, CSA Certified, EN 352-3 SNR, EPA Certified, Z94.2-1994, Replacement Pad Grainger Part Number 3NKW7, Band Color Black