Note the box style in the product description
Cartons have a FOL (full over lap) bottom for added strength
All styles are appoved for shipment of your product using Post Office (USPS)
Sizes shown are the inside dimensions of the box in the following order: Length
14 x 10 x 4 Brown Corrugated Deluxe Literature Mailers 50/Bundle 12x12 box Note the box style inAll of these Indestructo corrugated mailers boxes are designed to create a professional appearance for shipment of your catalogs, literature, parts, photos, printed material, etc. Note the box style in the product description. Choose from six styles: Standard Protective Mailers, Outside Tuck Mailers, RSC Boxes, Multi Depth Bookfolds, End Loading Mailers, and Jumbo Fold Over Mailers. Most styles fold together in seconds without tape, glue or staples.