The Packaging Wholesalers ENVB831 Bubble Lined Self-Seal Poly Mailer 6.5 x 10 Inches, 250 per Case Actual Size of Mailing Envelope : 6.5"x10", Usable/Inside Space : 6 x 10 Inches 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