Expanding file jackets are ideal for organizing and transporting your files. The 1/2 high, straightcut, doubleply tabs are reinforced for added durability and easy indexing. Closed jacket sides help keep papers and loose items secure while the thumbcut notch allows easy access. Use these file jackets in vertical or lateral filing systems. Acidfree, archivalquality folders are made of 11 point manila stock and 30 percent postconsumer recycled materials.