50 Pack 7x9 inches Rigid Mailers – Self-Seal White Flat Mailers – Heavy-Duty Mailing Supplies for Documents, Photos, Magazines, and Literature

50 Pack 7x9 inches Rigid Mailers – Self-Seal White Flat Mailers – Heavy-Duty Mailing Supplies for Documents, Photos, Magazines, and Literature

Sturdy & Reliable: Each document mailer is made from premium 420 GSM thick paperboard, offering excellent protection against bending, creasing, or crushing—ideal for shipping important documents or photos securely. Self-Sealing & Easy to Open: These rigid mailers come with a peel-and-seal adhesive strip for secure closure and a built-in tear strip, allowing recipients to open the paper mailers without damaging the document mailing envelopes or contents. White, Professional Look: Our clean, crisp white stay flat mailers envelope provides a polished, professional appearance, perfect for e-commerce businesses and personal use alike. Perfect for Subscription Boxes: Use these 7x9 flat mailer for promotional items, with a suitable size for art prints, photos, CDs, certificates, documents, booklets, manuals, greeting cards, and more. Perfect for Subscription Boxes: Use these cardboard mailers 7x9 for promotional items, with a suitable size for art prints, photos, CDs, certificates, documents, booklets, manuals, greeting cards, and more. Our cardboard envelopes are the perfect solution for securely mailing flat, lightweight items. These cardboard mailers function as self seal mailers and stay flat mailers, making them ideal for use as photo mailers, comic mailers, calendar mailers, and document envelopes. Designed to perform as reliable hard envelopes, they are made from durable, high-quality 420 GSM paperboard that resists bending, creasing, or damage during transit. Each cardboard mailer envelope features a strong peel-and-seal adhesive strip for easy closure, while the built-in tear strip offers tamper-evident and effortless opening. With a clean white finish, these mailer envelopes give a professional and polished appearance, suitable for both personal and business use. The versatile rigid mailer size accommodates a variety of flat contents such as brochures, prints, calendars, and catalogs, and can also be used as UPS envelopes or card envelope mailers. These document mailing envelopes are designed to meet e-commerce and subscription box needs, offering space-saving, cost-effective shipping with enhanced protection. Each pack includes “Do Not Bend” stickers to ensure safe handling. In addition to their performance, these compostable mailers are recyclable and eco-friendly, making them a sustainable choice for conscientious shippers who rely on rigid envelopes to deliver their most important items securely and professionally.