Secure your items with the Jiffylite Shurtuff size ST4 mailer bags. Made using a unique co-extruded manufacturing process, these non-padded mailers are tougher, lighter, and exceptionally smooth for easy product insertion. Enjoy the convenience of a self-seal perforated strip for easy opening, and the security of strong, high-strength welded seams that resist bursting, even when overstuffed. These bags offer outstanding water resistance and an improved tamper-resistant, self-seal closure, ensuring your contents remain secure and protected against the elements. Comes in a pack of 100.