Ear Muffs Earmuff Style Behind-the-Neck Noise Reduction Rating 31 dB Dielectric No Cushion Material Foam Polyurethane PVC For Use With Face Shields Headgear Includes Head Strap Cup Color Black Series X Earmuff Type Rigid Standards CSA Class AL Replacement Pad Grainger Part Number 21DE28 Band Color Black/Silver Band Material Acetal PET Polyamide Stainless Steel Cup Material ABS Features Earcup Liners Earcup Pivot Points Wire Headband Weight 0.7 lb