Ear Muffs, Earmuff Style Over-the-Head, Noise Reduction Rating 21 dB, Dielectric Yes, Cushion Material Foam, PVC, Compatible Manufacturer Model Number 10092878, Cup Color White, Series left/RIGHT(TM), Earmuff Type Rigid, Standards ANSI S3.19-1974, CSA Class A, Replacement Pad Grainger Part Number 6CCY8, Band Color Black/White, Band Material Acetyl, Features For Use in Low-Noise Environments, Such Pharmaceuticals and Outside Maintenance, Where Overprotection is a Concern, Weight 0.4 lb