Manila book wrap mailers that adjust automatically to whatever’s inside. Postal Packaging’s book wrap mailers fold around books, magazines, catalogues, jigsaws, and flat goods and close securely without tape, with the self-adjusting construction adapting to the depth of the contents every time. No separate tape or tools required. For dispatch operations that need to move quickly without compromising on protection for printed materials and retail goods. Ideal for mail-order books and media at any volume. Available in a range of sizes.