Anti-clogging design: The acrylic paint pens adopt a rainbow press design. When you need to use the product, you only need to press the pen tip to use it for a long time. If you don't need to use it, this design can prevent the ink from flowing out and clogging the pen tip. Strong adhesion: The waterproof markers are made from a scientific ratio of water-based pigments and acrylic pigments. It has strong adhesion and can be kept on a smooth surface for a long time. It will not fade after it has been completely air-dried. The product is light in color and can be left on paper. Easy to use: Our metallic markers can be used as directly pigmented dyes. Before each use, you just need to shake the marker up and down 2 to 3 times, then press the paper until the tip is filled with ink, and then you can start building. After use, be sure to cover the pen cap to prevent the unlimited ink flow from blocking the pen tip. Wide range of uses: Water-based medium tip markers adhere very well to smooth surfaces and can be used for painting on ceramics and glass. Acrylic pens for stones are also suitable for crafts and can be used for painting on photo albums, guest books, stone, wood, metal, plastic and whiteboards. Gift selection: Metal markers are perfect gifts for children, students and painters. They can be used directly as colored pigment and are the first choice for children to color Christmas balls. You can also paint with children to create an emotional atmosphere. Improve camaraderie with children and enjoy your parent-child time.