The Partners Brand ML18123K brown 3"literature mailers simplifies packaging and shipping your documents and other literature items. It features a corrugated design that provides enhanced protection from external damage. It an be easily asse mbled without the use of tape, glue or staples. Its rectangle shape gives you more room to store your items. This mailer measures 3"H 18"W 12"D in size. It is shipped and stored flat to save space. Brown coloredcorrugated construction. Assembles in seconds without tape, glue or staples. The perfect size to ship and store documents. Manufactured from strong 200#/ECT-32, B flutecorrugated. Shipped flat and sold in bundle quantities. The Partners Brand ML18123K brown 3"literature mailers provides a economical solution to packaging problems for items that needs to be mailed.