Copic Various Ink Refills. One bottle of Various ink will refill a Ciao marker 13 times, Sketch
8-10 times, Copic 7-9 times, or Wide markers 5-6 times. Match the
Various Ink color number with your marker color number. The bottles are
easy to use and refilling is a snap when you use the Copic nib tweezers
and booster needle.