The Packaging Wholesalers 7-1/4 x 12 Inches 1 Bubble Lined Self-Seal Poly Mailer, 100 per Case (ENVB832) 7.25"x12" Mailing Envelope 3/16 Inch bubble lining cushions products during shipment. Mailers feature a convenient peel and seal closure. Smooth exterior makes labeling easy Moisture, Tear and Tamper resistant