The OEM Sealed Air Jiffy TuffGard Premium Cushioned Mailers come in a carton of 25. These mailers are made from puncture-resistant, water-resistant, and tamper-resistant poly, featuring a clean, white textured surface for secure label application. With heat-seal seams that will not burst, these mailers include a 3/16" high Barrier Bubble layer for maximum cushioning. They are lightweight to help save on postage and feature an easy closure for sealing - simply peel away the liner and seal.