Protect important documents, photographs and disks with rigid and durable paperboard mailers. Made from 100 percent hand-sorted, recycled fiberboard (containing 95 percent post-consumer paper) for a high-quality mailer that makes a positive contribution to environmental concerns. They feature side glue flaps for strength and durability. A pressure-sensitive self-seal adhesive flap that is quick and easy to close, as well as tamper-evident. Perforated tab and tear system that saves you time in retrieving your documents.