Get a free Christmas card with your order now! Unique Super Squiggle Outline Markers: If you still need to add an outline to your painting, why not try to use outline metallic pens which could get a double line at once for your craft. The interior line is metallic silver and the contour line is different colors, create a great dual-color effect. Get these glitter pens will get glitter effect easily. 12 Colors Automatic Double Lines: Water-Based Metallic Silver Line markers with 12 vibrant colors borders: black, silver, green, sky blue, light blue, purple, orange, yellow, lemon yellow, rose red, pink and red, Create a beautiful dual-color effect. Also suitable for almost any surface, such as metal, pottery, wood, rubber, glass, plastic, stone, etc. Non_toxic & Fast-Drying: metallic markers for epoxy features Durable ultra-fine nylon nib, 1~2mm medium tip, quick-drying, Water-based ink is odorless, xylene-free, Non-toxic and acid-free, and environmental.Safe for kids, adults, students, artists, and professional designers alike. suitable for all ages of people to use. Children under 3-years old should be used under the supervision of an adult. Easy to Use: micron double line outline pens, First shake the marker well to mix the ink with the tip on. Then take off the cap and gently press down the tip on the surface a few times to pump the ink until it starts to flow. re-cap the markers immediately after use and store them horizontally. Suggest to write on paper with 80gsm above, Otherwise, a slight strike-through will happen. Ink is suitable to use on light color cardboard paper. Fast After-Sales Response: These drawing pens and markers can be used in writing letters, craft supplies, greeting cards, Easter egg paint, poster making, painting and highlighting. We believe these double line outline pen will be a fantastic present for Mother's Day, Party, etc. If you have any questions or suggestions about the products received, please contact us and give us an opportunity to improve, we will respond to you with a satisfactory solution.