Fashion mailers appearance creates a professional image for your company and leaves unforgettable impressions. Metallic padded envelopes 7 1/2 x 11. Black bubble mailers. PACK of 10 mailing envelopes. COLOR: Black metallic. Bright and shiny exterior. LIGHT-WEIGHT for saving postal cost. Multipurpose packing mailers. HIGH-SLIP smooth bubble cushioning materials allow faster, easier product insertion. Cushion mailers are made from foil with the cushioning of sturdy clear bubble lining 3/16". HEAVY DUTY: Large metallic bubble mailers with extra tuff turtle shell for ultimate protection. Outstanding insulation pouch for temperature sensitive products. Sided protection approx 1/2 inches fins. Thick well-padded shipping envelopes will protect your delicate shipment from breakage and damage. This packaging mailers are resistant to tearing and puncturing. SEAMLESS BOTTOM these heavy duty padded mailer affords additional cushioning protection along with greater overall strength and safety. SECURE PACKAGE: convenient self-seal closure while forming a water-resistant. While being opaque the exterior film keeps the contents invisible. Pressure sensitive adhesive. These designer padded envelopes have heat-bonded very strong tamperproof seals which provide safe shipping. ECO FRIENDLY: These foil bubble wrap mailers made from 100% recycled content.