Punches up to 20 sheets of paper in seconds with a built-in paper guide for guaranteed accuracy.This is world's first dual loading electric hole punch; paper can be inserted from the top or front allowing you to save space on your desk.Simply press the button to efficiently punch through the tall stack so you can work smarter, not harder!High carbon steel punches for best performance and durability creating precise 9/32" holes with the push of a button.Powered by a 120 V AC adapter or six AA batteries (not included), providing reliable punching power wherever you are.Auto-reverse if punch does not complete its cycle.No job is too big with this large capacity tray, the transparent finish allows you to see when it is ready to be emptied.The rubber base feet keep the hole punch secure and prevent slipping.