These new 9x12 inch poly mailer shipping envelopes feature a self-seal closure for secure, efficient packing. The plastic construction offers a lightweight, water-resistant option for mailing non-fragile items like clothing, documents, or fabric goods. Their standard size is suitable for many common shipments, and the white exterior provides a clean, professional look. This listing includes a supply of these polybags with free shipping. They are a practical choice for small businesses or individuals looking for an economical packaging solution. Check the listing for full details on quantity and material thickness. Poly Mailer Shipping Packing Envelope Self Seal Polybag Plastic 9x12 Bag 9 x 12. Color: White, Condition: New. Listed at 1.29 USD. Shipping Bag 9" x 12"Heavy DutyLightweight Tear and puncture resistant Poly Mailer 1 Mailers Water, weather, and dirt resistant Self Sealing, just peel and close USPS, FedEX, and UPS Approved Confidential Brand New We offer full refunds including shipping and handling for any reason, as long as they are shipping back to us. No time limit Check out my other items! For even better deals check out my Store Thank You for Looking, and Happy Bidding!!!!!!!!