Copic 0-V marker refill ink for Colorless Blenders. Copic markers are refillable using this fast-drying, permanent, non-toxic ink. Copic Various Ink is alcohol-based, does not dissolve toner, and works well with watercolors and colored pencils. Just match the color number on the marker with the corresponding ink color number. Markers can be refilled with the handy refill booster attachment or by dabbing the ink directly onto the nib. The 25cc ink bottle has enough ink to refill any of the Copic markers many times. Refill your Copic Colorless Blender markers with the Copic 0-V refill ink.