200 poly mailers bags 19" X 24", 2. 5mil Envelopes, white, self-sealing bags are high quality tough, puncture, tear, and water resistant. Poly mailers are light-weight, protective mailers made from a durable, moisture resistant polyethylene. Self-seal tamper evident adhesive closure. 19x24 Envelopes bags are sold as 200 per pack. All our Poly mailers bags are 2. 5 Mil high quality tough, puncture, tear, and water resistant. Premium wholesale Poly mailers 19 inches x 24 inches self-seal adhesive mailing shipping BAGS Envelope ideal for shipping suppliers. We have a large selection of shipping Poly mailer envelopes ready to ship to you and our 19 inches x 24 inches bulk Poly mailers sold in a pack of 200. 19" X 24" Poly mailers shipping Envelopes are strong polyolefin mailers that protect your goods from moisture during shipping. We offer 12 sizes of poly mailers 6 inch x 9 inch, 7. 5 inch x 10. 5 inch, 9 inch x 12 inch, 10x inch x 13 inch, 14. 5 inch x 19 inch, 19 inch x 24 inch, 24 inch x 24 inch, 26 inch x 32 inch. Also we have 3 combo sizes: 18. 5 inch x 54. 5 inch 3. 5 Mil, 56. 5 inch x 24. 5 inch 3. 5 Mil, 75. 5 inch x 46. 5 inch 3. 5 Mil extra large poly bags.