These chart divider sheets give you the option to design your filing system around your needs, without the need for custom chart dividers. Made of sturdy 110 lb. index stock that comes in either white or manila, these chart divider sheets are outlined in black so you can easily apply chart divider tabs, making home or office filing simple. Each sheet comes pre-punched, enabling top or side fastener mounting or 3-ring binder filing. This product is also available in 140 lb white chart divider sheets that feature 1/2 pockets for easy storage of small documents.