This product has three styles to choose from: battery style (send a sticker and a cutter head), battery charging style (send a sticker, a cutter head and a power cord) and lithium battery charging style (send a sticker, a cutter head and a data cable). The price shown is the battery style. Please email for other styles. Pencil sharpener size: 3"*3.3 ".When you press down on the pencil, it will automatically sharpen.Quickly sharpen all standard 6-8mm pencils.Coloured and traditional graphite pencils, suitable for round and triangular and hexagonal pencils.The pencil sharpener is small and very portable.The whole mechanism is easy to take apart. You just unscrew the top. Then you can easily throw out the shavings and replace the blades on the sharpener.