50 Pack White Rigid Mailers, 9"x12" Self Seal Document Mailer Stay Flat Cardboard Mailers Shipping Envelopes for

Key features

• Document Mailers Size:50 pack 9X12 inch white rigid mailers Self Seal Photo Document Mailers. Fits for 8.5x11 inch items. Made of 450gsm paperboard. Each mailer's weight:76g. Thickness: 2.25mm (folded side edge, not single-ply.)
• Lightweight & Sturdy Cardboard Construction： Each Rigid Mailer is made of heavy cardboard,which has strong resistance to bending and tearing.You can send your products directly without inserting additional cardboard. They meet standard envelope requirements, providing reliable protection
• Self-Seal Design for Fast & Easy Shipping: Built with strong self-adhesive strip, no tape, no water needed. Just peel and seal tofinish packaging quickly. The flat glued sides are sorting machine-friendly, greatly improving efficiency for bulk mailing and high-volume shipping operations
• Clean, Polished, and Brand-Ready Look： Minimal, bright-white finish gives your card shipments a clean and professional appearance. Pair them with your branding stickers or customreturn labels for a consistent, trustworthy look your buyers will remember
• These Seal Photo Document Mailers are perfect for mailing softgoods, photographs, documents and printouts. Ideal choice postoffices, logistic shipping companies, packaging wholesalers, mailorder companies, office stationery suppliers, online stores, homeor personal use

Free shipping included. 30-day hassle-free returns.