Anti-clogging design: Acrylic paint pens use rainbow printing design. When you need to use the product, you only need to press the tip of the pen to use it for a long time. If you do not need to use this design, it can prevent ink from flowing out and clogging the tip of the pen. Strong adhesion: Waterproof marker pens are made of a scientific mixture of water-based pigments and acrylic pigments. It has strong adhesion and can be maintained for a long time on a smooth surface. It will not fade after it is completely air-dried. The product has a bright color and can be left on paper. Easy to use: Our metallic marker pens can be used as a paint directly pigment. Before each use, you only need to shake the marker pen up and down 2-3 times, and then press the paper until the tip is filled with ink, and then you can start building. Be sure to put the pen cap on after use to prevent the unrestricted ink flow from blocking the tip of the pen. Wide range of applications: Water-based markers with medium tip adhere very well to smooth surfaces and can be used for painting on ceramics and glass. Acrylic markers 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 choice: Metal markers are perfect gifts for children, students and painters. They can be used directly as a colored pigment and are the first choice for children to color Christmas balls. You can also paint with children to create an emotional enhancement of friendship with children and enjoy your time with your children.