Hipiwe Electric Pencil Sharpener with 2 Sizes of Holes - Automatic Sacapuntas for 6-8 mm and 9-12mm Pencils, Portable Battery-Powered, Carbon Steel Cutting, 2 Extra Replacement Blades Included (Blue) It can be powered by either charging adapter (Charger adapter and USB cable connection cord not included) or 4-AA batteries (Not included), portable and easy-to-carry. Safety Design - The pencil sharpener stops operation when the shaving tray is removed, great for school kids. Replaceable Sharpener Core Design - 2 extra replacement blades included, durable service life time. Carbon Steel Cutting Blades - Fast cleaning and stable cutting performance Best Gift Idea - This sharpener is a good choice for personal use and friends using in office or at school