【Heavy Duty】: Each Rigid Mailer is made of 700 GSM heavy cardboard, which has strong resistance to bending and tearing. It will insure privacy of the envelopes contents, the durable, woven paper extends the tampering resistance of this envelope, standing up to normal postal wear and tear without damage.
【Easy To Seal And Peel】:The design of the seal and tear strip allows you to use it easily without worrying about damaging the contents inside.
【Multi-Puprose】: 9x12 inch photo mailers is a good choice for post office, company, home! Ideal for mailing photos, catalogues, magazines, documents, direct mail, promotional material, brochures and more