FW Empty Paint Markers allow inks and other liquid media to be applied with precision across a variety of surfaces. Ideal for use with FW Acrylic Ink, the empty markers can create unlimited individual colors through mixing and dilution and can also be filled with other mediums such as watercolor and calligraphy inks. FW Mixed Media Markers are available in nine different marker sets ranging from small to large barrels and can be equipped with a selection of different nib sets suitable for technical drawing, illustration and street art. Empty markers can be rinsed out and washed for re-use and can mix colors with precision; there are volume measurements on each marker. Nib sets are available for replacing the nibs in the reusable markers. Should not be used with FW Pearlescent inks.