Extend the life of your favorite permanent marker! This refill ink offers a straightforward and clean process for refilling your Edding permanent marker, using a capillary or "drop" system. Reduce waste and continue to use your favorite writing utensil. Stand the marker nib downwards in the refill bottle for at least an hour, or ideally overnight. Details:Available in multiple colors30 mL 8 refill inksPermanent inkVibrant, long-lasting colorFor use with Edding permanent markers