Portable three-hole punch uses battery or electric power so you can take it anywhere. Antimicrobial product protection makes the hole punch last longer and keeps it cleaner. Hole punch drills through 15 sheets of paper at a time and features a reverse function in case of jam. Built-in paper guide helps you line up the paper. Hole punch is made of plastic with post-consumer recycled material and operates on six AA batteries (not included). Hole punch size is 9/32".