Since 1882 Prang Art & Craft solutions maintained an uncompromised quality to ignite the passion of our valued creative customers. Dive into a Limitless coloring journey with the brightest color quality and the most durable fine line tip in the market that will outperform any other marker. Reliable performance with a special formula that won't bleed through the paper & won't dry even when the cap is off for over 24 hours. Fine Line Markers allow for detail drawings with fine 2mm tip. AP Certified non toxic.