Check the listing for details. Poly Mailers Shipping Bag 5x7 6x9 9x12 10x13 7.5x10.5 12x15.5 14.5x19 19x24. Color: White, Condition: New. Listed at 9.49 USD. Secure Seal™ Poly MailersStrong polyethylene mailers protect products from moisture during shipping. Mailers are puncture, water, tamper, and tear resistant. All sizes are interior dimensions High strength seams will keep contents intact, even if over packed. The outer surface of the mailer is white and the inner lining is silver. Labels, stamps, and ink adhere well. Self-sealing. .Secure Seal™ Poly MailersStrong polyethylene mailers protect products from moisture during shipping. Mailers are puncture, water, tamper, and tear resistant. All sizes are interior dimensions High strength seams will keep contents intact, even if over packed. The outer surface of the mailer is white and the inner lining is silver. Labels, stamps, and ink adhere well. Self-sealing. .