Safe and easy to use: Super markers are completely safe because they are non-toxic, water-based, and acid-free. Kids, adults, art students and teachers all love our marker pens because they are fun, easy to use, and provide great visual effectsDouble tips: wide and delicate, suitable for precise highlight and underline. The 1mm or 6mm brush allows you to write with thin and thick lines, providing excellent versatility and flexibility, allowing you to easily create various styles, sketches and patternsInfinite uses: When using these double-tip super marker pens, your imagination becomes vivid, because they are very suitable for drawing, writing, sketching, painting, painting, doodling, filling adult coloring books or anything else that allows you to show your creativity Side ofFull-color specifications: These pens cover a broad spectrum and can be mixed together to make your own unique colors, multi-purpose and different labels to help you store, organize, track, and share gifts or daily commodities.Item Name: Art MarkFeatures: double head or alcohol or comic sketch markerLength: 6.1 inches or 15.5 cmOptional Quantity:12 colors or 24 colors or 30 colors or 36 colors or 40 colors or 48 colors or 60 colors or 80 colors or 120 colors or 168 colors