Earmuffs, Earmuff Style Behind-the-Neck, Noise Reduction Rating 23 dB, Dielectric No, Cushion Material PVC, Compatible Manufacturer Model Number 101-29001, For Use With Face Shields, Hard Hats and Other Personal Protection Equipment, Visors, Cup Color Blue, Series Sound Star, Earmuff Type Foldable, Standards ANSI S 3.19 -1974, CSA Class B, Replacement Pad Grainger Part Number 3NHJ4, Band Color Black, Band Material Stainless Steel, Features Four Point Suspension, Soft-Seal (TM) Ear Cushions. This item has been restricted from sale in the following state (s): []