PM5:12x15.5 2.0 Mil Thick. Poly mailers are a popular choice for all e-commerce businesses. Equipped with an adhesive strip for sealing. They are extremely cheap, lightweight, and take up less space than boxes. They're perfect for non-fragile items. Note: Due To The Different Between Different Monitor, The Picture May NOT Reflect The Actual Color Of The Item.. Their white/grey exterior also makes ink, stamps and labels easily visible. Adhesive: Synthetic rubber - Hotmelt, ½" minimum +/- 1/4". Lip Size: 1.5" +/- ¼". Opacity: Business card inside the mailer should not be visible under UV light. White/Grey Exterior, Black Interior (Interior color of mailer is subject to change). Puncture resistant and tamper/water proof. High adhesive seal strip-packages are tightly secured after 3-5 minutes sealed. Inks, Stamps, Labels adheres easily. Available in single or bulk case quantities. Any personal information that you provide to us i. Will be used solely to process orders received from you.