Packzon 100 6x9 Poly Mailers Envelope Shipping Bags with Self Sealing Flap DIMENSIONS: Width 6" x Length 9" do not include 2" flap MATERIAL: Three layer co-extruded polyolefin (polyethylene) film. Material is waterproof, seal is not. FEATURES: White outer surface & silver inner layer provides confidentiality. Labels adhere easily, Recyclable 100% SPECIFICATIONS: Acid free