BOX USA Rigid Mailers 9" x 12" (100-Pack) - Cardboard Mailer Envelopes for Photos, Documents, Certificates - Stay Flat

9 3/4 x 12 1/4" White Flat Mailers. Strong chipboard mailers protect photos and documents during shipping. Manufactured from white .028 Chipboard. Light-weight to save on postage. No additional stiffeners needed. Tab lock closure. Made in the USA!

• STAY-FLAT RIGID PROTECTION: Heavy-duty self sealing rigid mailers made from sturdy cardboard to help keep contents flat and protected in transit—ideal stay flat mailers to protect photos, artwork, certificates, and important documents.
• 9" x 12" SIZE FOR DOCUMENTS: Standard document-size cardboard mailer envelopes designed for prints and paperwork—great photo mailers and document mailer option when you need wide coverage and clean edges.
• BULK 100 PACK VALUE: Stock up for home businesses, offices, and shipping stations—100 count cardboard envelopes for consistent packing, faster fulfillment, and better cost-per-mailer.
• CLEAN, PROFESSIONAL LOOK: Bright white, presentation-ready hard envelopes for mailing that look sharp for clients, classrooms, studios, and official document shipments—easy to label and barcode.
• SHIPPING + STORAGE MULTI-USE: Use as do not bend envelopes, for eCommerce fulfillment, photo & art, certificate mailing, or flat storage—reliable cardboard mailers for shipping, packaging, and organization. Made in USA & made of recycled materials