The design is inspired by archery targets. When people use a traditional pencil sharpener, because the entrance of the sharpener is small, it is usually difficult to insert the sharpener into the mouth. Therefore, designing the red concave target on the entrance surface can provide visual guidance and improve the awkwardness of pencil sharpening. And it changes the original electric pencil sharpener to sharpen the pencil vertically or horizontally. The sharpened position is inclined at an angle of 45 degrees, which is more ergonomic and makes the pencil sharper more comfortable.