Check the listing for details. A2Z Eco Friendly Grey 50 Poly Mailer Postal Self Seal Mailing Post Bags Postage. Condition: New. Listed at 27.02 USD. SIZE AND QUANTITY: We offer durable mailing bags in various sizes to meet your needs. The available sizes are 4.5x7 inches, 6.5x9 inches, 9x12 inches, 10x14 inches, 12x16 inches, 13x19 inches, 15x18 inches, and 22x30 inches. These bags are made from strong 50-micron 100% recycled opaque film, providing additional protection. You can purchase the bags in quantities of 50 according to your needs. EASY TO USE SELF-ADHESIVE TAPE: Say goodbye to cumbersome packing tape with our convenient peel-and-seal adhesive strip. The self-adhesive closure ensures a secure seal, giving you peace of mind knowing your package cannot be opened unless manually cut. These bags can accommodate your needs by allowing you to use their full size or wrap the excess material before sealing. TAMPER PROOF: Our plastic m.