All sizes shown are the inside dimensions of the box (in inches) and are in the following order: Length
glue or staples
One inner and one outer carton required to make a set - sold separately
Sold and shipped flat in bundle quantities
Cartons have a FOL (full over lap) bottom for added strength
12 x 12 x 4 White Deluxe Literature Mailers 50/Bundle trending All sizes shown are theAll 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.