Sold as 1/Set. Use the acid-free polypropylene dividers to store up to 8 1/2' x 11' size documents and smaller. Write-on index tabs allow you to instantly categorize your binder and label each section to make it easy to reference. Use a pencil, ball point pen or permanent marker to label each tab. Each divider features two pockets making it possible to organize pages, business cards and more.