The Partners Brand MFL12123 oysterdeluxe literature mailers offers an economical option to ship and store your most important documents in a hassle-free manner. Designed with protective side flaps and front outside tuck closure for safet y, it assembles in seconds without the use of tape, glue or staples. Its rectangle shape gives you more room to store your items. This mailer measures 3"H 12"W 12"D in size. It is shipped and stored flat to save space. Deluxe Literature Mailers provide maximum protection for your most important documents. Manufactured from strong 200#/ECT32-B oystercorrugated. Usable Inside Dimensions: 12"x12". Assembles in seconds without tape, glue or staples. 50/Bundle. Product Type: Literature Mailers. Oystercolored corrugated construction. Dimensions: 3"H 12"W 12"D. Front outside tuck closure. The Partners Brand MFL12123 oysterdeluxe literature mailers provides a smart way to ship and store all your important documents in the easiest way possible.