MUREN Our marker pens feature unique automatic dual lines, it provides exceptional coverage, allows you to express your creativity and work more fantastic. Painting Effect: Double line, inner line is metallic silver, the contour line is colored. 12 Vivid Colors: Comes with 12 bright colors containing shimmering ink, which will add a sparkle luster. Great for arts,crafts, coloring, gift cards, Christmas cards, DIY craft projects, paintings,etc. Best Gift Idea: The perfect gifts at Easter, Valentine's Day, anniversaries,Thanksgiving, Mother's day and any other occasions. Double Line Outline Marker Different Glitter Colors Containing Shimmering Ink, Which Yield a Vivid Color and Add a Sparkle Luster. Also Suitable for Almost Any Surface, Such as Metal, Pottery, Wood, Glass, Plastic, etc.