Write & Erase durable plastic dividers let you write, erase & reuse your dividers for easy changes at any time. Simply write directly on the tabs with a ballpoint pen or pencil, & erase as needed. You can also take quick notes on the divider body & easily erase later. Made from ultra-durable, tear-resistant plastic, these dividers are ideal for frequent use in any three-ring binder. The Big Tab design offers 1.5 times more writing space than standard divider tabs, & the multiple colors allow for quick referencing. Ideal for your personal organization at home, work & school. Index Divider Style: Customizable; Index Divider Size: 11 x 8.5; Punched / Unpunched: 3-Hole Punched; for Use With: Ring Binders.