About This Item:The Double Line Pen Can be Used in Writing a Greeting Birthday Card, Doodling, Scribbling, Poster Making, Drawing and Highlighting. Besides, Also Suitable for Kids or Adults DIY Craft Projects.Double Outline Pen Specially Designed with a Wear-Resistant and Pressure-Resistant Chisel Tip, That Helps to Achieve Fluid and Smooth Clear Writing Effortlessly Across the Page. Please Contact Our Customer Service in Case Any One of the Markers are Leaked or Dry.Set of 12 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.These Incredible Self-Outlined Markers Write in Vivid Metallic Silver Surrounded by Colored Borders. Unique Technology Produces Outlines for You Automatically to Create a Beautiful Dual-Color Effect.With the Cap On of Before Using, Shake the Marker Well to Mix the Ink. 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. for Best Results, Re-Cap the Markers Immediately After Use and Store Horizontally.Name: 8/12-colour outline penColour: 8/12 coloursProduct packaging: 8/12 piecesPacking list.8/12 pens (Optional)