Tip: the colors can be washed after 24 hours when the painting is completed. Not suitable for children under 3 years old This pen is suitable for individual DIY creation and coloring on various unstarched textiles such as cotton, linen, silk, chemical fibers, T-shirts, and sports shoes. The color is not smudged, can be maintained permanently, and can withstand daily washing and sun exposure Textile paint pen, tailor-made for you, free to create, used to paint clothes, cloth shoes, cloth backpacks... Unique creative new clothes to put on the body Notice: Special Note: (A) Because it is permanent, after buying it, you must first use the leftovers to test and master the skills before using it formally. (B) It must be a non-steam iron, you can't do it if you turn on the steam iron. (C) No ironing is also permanent, but the color retention is not as good as after ironing, so do not use it as a temporary mark.