Self Seal Mailing Bag Waterproof Poly Mailer Envelope Postal Shipping Bag

8.5'' X 12'' (#2) (2). 14.5'' X 19'' (2). 5'' X 10'' (#00) (2). Poly Bags 2.5 Mil (2). 10 X 16 Poly Mailers Shipping Envelopes Self Sealing Plastic Mailing Bags. The high-quality, self-sealing adhesive strip is tamper-resistant and tamper-evident.