Adjustable Pencil Sharpen / Stationery

This is the structure of innovative design pencil sharpener, pencil sharpener can adjust the angle. Usually written using pencil sharpener often too short, too long a cartridge will happen. In addition to regular pencil. Also a waste of resources. Works by changing the inclination of the blade, thereby changing the shape of a written Friction area can be used to repair the shape of the tip, such as a dedicated exam 2B pencil. Overall simple and elegant.