Battery Operated Single Hole Pencil Sharpener. This Jakar Automatic Pencil Sharpener is a single-hole, battery-operated sharpener, ideal for no-fuss, easy sharpening. This pencil sharpener is incredibly easy to use, simply place your pencil in the hole and it does all the work for you. The electronic sharpeners clear window enables you to see when the waste collector needs emptying. For extra safety, this high quality sharpener will not function if the casing is not in place, thereby limiting access to moving blades. Perfect for students and general school, home and office use, this Jakar Automatic Pencil Sharpener can also be used with a 6v D.C. mains adaptor (not included). Requires 4 x AA batteries (not included).