Non-toxic.

The difference with the stone highlighter pen is that its ink is composed of fluorescent agents. The key function is that when it encounters ultraviolet rays (mostly sunlight, fluorescent lamps, and mercury lamps), it will produce a fluorescent effect and emit white light. This makes the color look dazzlingly fluorescent.

Dianshi is a brand that submitted an application to the China Trademark Office on June 3, 2013 and was registered on November 14, 2016. The main business scope of the brand is: watercolor painting; school supplies (stationery); ink ; Writing materials; Painting materials; Rice paper (used in Chinese painting and calligraphy); Cardboard products; Photo albums; Painting instruments; Colored chalks (crayons).