Description: How to use: Press a little harder on the pen tip until the pen tip is soaked in ink to write normally. Note: Paper is easily penetrated.Different papers have different writing effects. Coated glossy paper has no contour effect. Package Includes: 1*Outline Markers (12Pcs) Two-line contour pen: Using pigment ink, these incredible self-outlining marker pens are written in vivid colored borders. Unique technology will automatically generate contours for you to create beautiful two-color effects. Smooth, durable nib: Write like a normal pen without deliberately increasing pressure, and provide clear, clean lines every time. Stimulate your interest in learning and make notes fun. Glittering colors: 12 different colors are provided, including shiny inks, which can produce vivid colors and increase the glittering luster. High quality: 12-color contour pen is made of specially formulated opaque ink. Our flash pen is non-toxic, tasteless, acid-free and environmentally friendly. Best DIY tool: Suitable for children or adults who like various festivals, greeting cards, birthdays, DIY projects and other handicraft projects that need to be marked with paint. Bright colors and special nibs make cleaning up without trouble or mess. This is the best choice for you as a gift. Two-line contour pen: Using pigment ink, these incredible self-outlining marker pens are written in vivid colored borders. Unique technology will automatically generate contours for you to create beautiful two-color effects. Smooth, durable nib: Write like a normal pen without deliberately increasing pressure, and provide clear, clean lines every time. Stimulate your interest in learning and make notes fun. Glittering colors: 12 different colors are provided, including shiny inks, which can produce vivid colors and increase the glittering luster. High quality: 12-color contour pen is made of specially formulated opaque ink. Our flash pen is non-toxic, tasteless, acid-free and environmentally friendly. Best DIY tool: Suitable for children or adults who like various festivals, greeting cards, birthdays, DIY projects and other handicraft projects that need to be marked with paint. Bright colors and special nibs make cleaning up without trouble or mess. This is the best choice for you as a gift.