The water-based fluorescent pen is newly produced in recent years. It is used for marking. It uses thicker and lighter ink to cover key parts for marking. After marking, the blocked text is clear at a glance. The most important role is that documents marked with fluorescent pen can not be seen to have been marked when copying!

Highlighter is a marker pen produced in recent years. It uses thicker and lighter ink to cover key parts for marking. After marking, it will not block the text at a glance. The fluorescent pen has fluorescent agent. When it encounters ultraviolet light (sunlight, fluorescent lamp and mercury lamp are more), it will produce fluorescent effect and emit white light, which makes the color look dazzling fluorescent. It is often used for office study.