Polyair Xpak #2 Bubble Lined Poly Mailer, XPAK2, 8.5" x 12" (Pack of 100) Note:When the lip is open the item measures 8.5"x12". When the lip is closed item measure 8.25"x11". The poly film is gray on the inside for inside for privacy protection Made with an exteriour poly film laminated to a high slip bubble lining.Peel and seal closure tamper resistant /evident closure Puncture and moisture resistant Low cost shipping protection for a wide variety of products Economical alternatibe to shipping products in a carton UPS, FedEx and USPS friendly