Create bound presentations faster and easier. ZipBind Pre-punched Accessories save you time because they make it easier to snap pre-punched presentations together with ZipBind spines. Machine-free solution saves time and offers an on-the-go option. Set includes 10 clear front covers and 10 black back covers. Pre-punched covers save time and offer faster, easier binding. Editing is easy with ZipBind spines (sold separately) that snap open and close for quick changes.