Permanent embroidery paint pen, suitable for writing, coloring, and marking on various textiles such as cotton, linen, silk, and synthetic fibers, or untreated clothing. It is often used to create personalized T-shirts or sports shoes. After ironing without steam, the color will remain permanent and can withstand normal daily washing. The eco-friendly water-based ink has a warranty period of up to two years. Writing on fabric will not bleed. All products are equipped with safe pen caps and are suitable for children aged three and above. The product has passed related certifications from the United States ASTM and the European Union EN71, which are safe and non-toxic. Each package contains 2400 pens, and a 12-color set is packaged in a PVC bag.