Big Tab Insertable Dividers offer 1.5 times more printed space on the tab inserts. A unique tab design keeps inserts from falling out, and reinforced holes provide extra tear resistance making these dividers great for everyday use. Three-hole punched. Index Divider Style: Customizable; Index Divider Size: 11 x 8.5; Punched/Unpunched: 3-Hole Punched; For Use With: Ring Binders.