Sealed Air TuffGard Mailers, Cushioned, 6 x 10 Inches, 25 per Count, White (SEL37712) Jiffy Tuffgard Premium Cushioned Mailers are made from puncture-resistant, water-resistant, tamper-resistant poly with a clean, white textured surface for secure label application Heat-seal seams will not burst Mailers have a 3/16" high, Barrier Bubble layer for maximum cushioning