Markers, have volatile pigments and are used for one-time quick drawing. It is often used in designing items, advertising slogans, poster drawing or other artistic creations. You can draw thicker lines with little change. A box pen is a type of marker pen. Markers are also divided into water-based and oil-based inks. Water-based inks are similar to colored pens and contain no olein ingredients. Oil-based inks contain olein ingredients, so the taste is more irritating and more volatile. If the paint on the toy falls off, you can use a marker to fill in the color.