1. Profile.
Mark pen head and pen holder are flat and square, which are also composed of pen holder, pen core and pen tip; The pen head and the pen holder of the watercolor pen are all round, which are composed of the pen holder, the pen core and the pen tip.
2. Price.
The price of marker pen is higher than that of watercolor pen. The price of 24 color watercolor pens is about 25 yuan, and the price of 24 color marker pens is about 45 yuan.
3. Category.
Marker pens are divided into oil marker pens and water marker pens. Oil marker pens are mostly used for one-time quick drawing. They dry quickly, and are resistant to water and dry. Although it can't dissolve in water, it can dissolve in alcohol. If the pen is dry, add a little alcohol into the refill and it can be used for a period of time. The water-based marker is bright in color and can be dissolved in water. When it is dry, add some water to the refill and it can be used for a period of time.
The watercolor pen includes single color watercolor pen, dual color watercolor pen and multi-color watercolor pen. The single color watercolor pen only has the difference of color, and has 12 colors, 24 colors, 36 colors and other color numbers. Two color watercolor pen has two colors for writing. Multicolor watercolor pen is made of a variety of color refills together to form a pen head, which is often used in beautiful work paintings.