18 x 12 x 3 Brown Corrugated Literature Mailers 25/Bundle Discount_5933550108762_10 All boxes are heavy duty

All boxes are heavy duty RSC (Regular Slotted Carton) brown corrugated

Preserve shipment appearance by sealing white boxes with clear carton sealing tape or white paper tape

All of these Indestructo corrugated mailers / boxes are designed to create a professional appearance for shipment of your catalogs

All sizes ship flat to save on space

18 x 12 x 3 Brown Corrugated Literature Mailers 25/Bundle Discount_5933550108762_10 All boxes are heavy dutyAll 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.