Introducing our Super Wavy Outline Markers, the perfect tool to add a touch of magic and shiny to your artwork! These markers are made from high standard ink, ensuring a smooth and fluid writing experience. Just shake, push the tip down until ink flows to the tip, and write. The markers outline the color of a thin, saturated marker cap, leaving a solid color on the other side. For best performance, remember to re-cap the markers immediately after use and store them horizontally. These double line pens are not only suitable for lettering, card making, adult coloring book, and decorations but also work on almost any surface such as metal, pottery, wood, rubber, glass, plastic, stone, etc. Our Super Wavy Outline Markers are odorless, non-toxic, acid-free and environmentally friendly for your peace of mind. The dazzling shimmer adds a gorgeous and sparkling effect to your artwork. The self-outlining pen itself is metallic silver but outlines with the color of the pen, creating a unique two-tone effect that is perfect for designing DIY crafts and personalized gifts. Whether you're an adult or a student, these markers are great for unleashing your creativity. They also make for wonderful gift options. Item Name: Marker Pen Material: Plastic Features: Colorful, Double Line Glitter, Smooth Writing Size Details: Length: 13cm/5.12" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 12 x Marker Pen