System3 Acrylic Inks are pigment-based, waterbased opaque inks for mixed media and multi-technique work. They work well on many surfaces for traditional fine art as well as other types of creative work. Water-resistant when dry. Colors match the System3 Acrylics range. 29.5 ml dropper bottles. - Daler-Rowney System3 Acrylic Inks - Starter Colors, Set of 3System 3 Ink, STARTER SET 3 CT SET - Includes three 1 oz (29.5 ml) bottles of ink in Ultramarine, Cadmium Yellow Hue, Cadmium Red, and an empty 1-2 mm FW Marker.