CARL BRANDS-The Binding System: 12-inch. This system takes the guess work and the consumption out of punching each hole individually. In four quick steps you can have up to an 11 inch paper ready for your spiral-binder ring (not included). For binding books; notebooks and journals in scrapbooking; paper craft; and other applications. This product is constructed of plastic and steel. Punch includes a dumping litter so work area stays clean. Maximum paper thickness: 0.4mm. Colors: blue; lime green and white. Imported.