About this item

• 3.54x5.12 inch is outside size; usable width is 3.15 inch, usable length is 4.92 inch and additional self-adhesive part 1.18 inch
• The thickness of metallic foil material is 2.95mil (one side)
• Self seal design with strong adhesion makes the mailer work for your purpose and not need extra tape to seal
• The material of this metallic poly mailers is stronger than shipping poly packaging
• The mailing bags used for shipping and packaging