Poly Mailers:Poly mailers are a popular choice for all eCommerce businesses. Equipped with an adhesive strip for sealing. The packaging is both simple and fast, providing a great way to ship your goods. Not only are they quick and efficient, but they are also water-resistant and tamper-evident, allowing you to ship your items confidently. They are extremely lightweight, and take up less space than boxes. They're perfect for non-fragile items.2 Mil Poly Mailer:These 2 Mil poly mailers are the perfect solution for shipping lightweight materials. With water and tamper resistance, and a self-sealing lip with a synthetic rubber adhesive, these provide a safe and secure way to ship your packages. Not only are these mailers secure, but they are also lightweight as well. Their white/grey exterior also makes ink, stamps, and labels easily visible. Whether shipping clothing, books, or pretty much anything that can fit in the (size) bag, you can ship confidently using these mailers!Item Specifications:● Lip Size: 1.5” +/- ¼”; Paper Liner: Clear with antistat.● 2-millimeter thickness (+/- 5%); Approved by UPS, FedEx, and USPS.● Opacity: Business card inside the mailer should not be visible under UV light.● Available in single or bulk case quantities; Adhesive: Synthetic rubber – Hotmelt, ½” minimum +/- 1/8”.● Puncture resistant and tamper/waterproof; Provides excellent protection during shipments.● Usable Dimensions: 10” x 13”; White/Grey Exterior, Black Interior (Interior color of mailer is subject to change).● Used to Ship Lighter Weight items; High adhesive seal strip-packages are tightly secured after 3-5 minutes sealed.DISCLAIMER: ALL PICTURES SHOWN ARE FOR ILLUSTRATION PURPOSE ONLY. ACTUAL PRODUCT MAY VARY DUE TO PRODUCT ENHANCEMENT.