Express yourself boldly whenever you choose with these Sharpie Twin-Tip permanent markers. Use these double-tip markers to create custom designs. One end of each marker has an ultra-fine tip for intricate details, while the other end has a fine tip to create thicker marks when needed. The permanent ink dries quickly to create smudge-proof, fade-proof marks to produce lasting impressions. These Sharpie Twin-Tip permanent markers let you write on metal, plastic, and paper for a versatile writing option. Permanent-ink formula is designed to last. High-contrast ink in rich blue color that is meant to stand out on all types of materials. Features both an extra-fine tip and a fine tip, perfect for creating a variety of looks. You can switch between fine and ultra-fine marking. One dozen blue markers make sure you don't run out of them too quickly. Meets or exceeds AP standard. Quick-drying ink is fade and water resistant. Safety Data Sheet Sold as 1 Dozen.