What about pencil drawing?

Just replace it. Pencil is a special pen for writing and sketching. Pencils can be replaced by lots. Pencils have a history of more than 400 years. Among them, there are many kinds of pencils used for sketching, which are divided into three stages of development, namely graphite, wooden pen holder and pencil with cap. Users need to cut it again before using it. In addition, its colors are red, white, black and white, yellow and black.