Ear Muffs, Earmuff Style Over-the-Head, Noise Reduction Rating 27 dB, Dielectric Yes, Cushion Material Foam, Polyurethane, PVC, Cup Color Gray, Series X, Earmuff Type Rigid, Standards CSA Class AL, Replacement Pad Grainger Part Number 21DE27, Band Color Black, Band Material Acetal, Polyester, Polypropylene, Stainless Steel, TPE, Cup Material ABS, Features Earcup Pivot Points, Wire Headband, Weight 0.5 lb, Electrically Insulated Yes