Extra Durable Zipper & Double Sewing Lasts for years unlike small plastic cheap zippers. Double sewing means that a strong tug won’t tear the stitching. Extra Large 18" x 14" Size Easily fit a large stack of papers. Hold and protect more sheets of paper without damage. Discreet Black Bag That You Can Lock For Added Security Make sure the wrong people don't read confidential and sensitive information. Conveniently Identify Recipients Clear identification pouch makes addressing your documents to the correct person easy.