The 4-color suction card fluorescent pen is made of environmentally friendly and high-quality materials, and adopts the standard environmental-friendly ink of SGS. It is non-toxic and tasteless. The colors are orange, green, Rose red and yellow respectively. The color is bright and beautiful. It is used for: Students, office key mark. Write advertisements, artistic fonts, etc. Note: Use the back cover tightly to avoid water evaporation to extend the writing time. Packed in colored paper cards, order phone number-85165275/13335967727