SINJEUN 100 Pack 9x 12 Inch Stay Flat Mailers, 250 gsm Self Seal White Cardboard Envelopes, Stay Flat Envelopes for Files, Photos, Pictures, Papers

SINJEUN 100 Pack 9x 12 Inch Stay Flat Mailers, 250 gsm Self Seal White Cardboard Envelopes, Stay Flat Envelopes for Files, Photos, Pictures, Papers

• HIGH-QUALITY MATERIAL - These stay flat mailers are made of premium paperboard material. Even if they are not thick, they can prevent your documents from bending, folding and wrinkling, making your items reach their destination safely.
• SELF-ADHESIVE DESIGN - Strong flap adhesive can seal your stay flat envelopes firmly to provide the max protection for your privacy. The tear strip design can help you easily open the package and save your precious time.
• PROFESSIONAL APPEARANCE - The simple and clean white style gives them a professional appearance. You will get 100 packs of white cardboard envelopes. The size of each envelope is 12.7 x 9 inches. Their space is large enough to store your files.
• WIDELY USED - The stay flat mailers are very suitable for mailing documents, photos, papers, books, magazines, certificates, CDs, brochures, greeting cards, invitations, handmade crafts and so on. They are the perfect choice for courier companies, post offices, schools, factory wholesalers, retail stores, and personal use.