The Pendaflex Divide It Up multi-section file folders feature 3 sections in 1 folder to let you sub-divide files. The folders are designed to fit into existing file systems. Individual sections with tabs allow you to access files quickly and easily. Sections are closed on 2 sides for added security. Fits easily into existing filing systems. Letter-size (8 1/2" x 11") file folders keep your documents organized. Manila file folders come in a pack of 24.