Sleek, personal 3-hole punch is ideal for travel and features seamless automatic operation. Effortless, electric hole punching is achieved using the AC adapter (included) or 6 AA batteries (not included). Delivers clean 3-hole punching through as many as 15 sheets at once. Easily clear jams by hitting reset button. Sheet Capacity: 15; Operating Method: Electric; Number of Holes: 3; Hole Diameter: 9/32".