Set 3 Acrylic Inks Primary Colors FW Water resistant pigmented acrylic based ink (on most surfaces). It also has a high degree of lightfastness. Colors can be diluted to achieve more subtle colours, similar in character to watercolor. It can be worked with overlapping layers of ink, like in watercolor, and even be mixed with other colors or other acrylics. It can also be used with acrylic mediums or with water, to achieve glazes or transparencies. Can be used in airbrushes and fountain pens. Shake well before use. Contains 3 bottles of 29.5 ml.: - Process Yellow. - Crimson. - Process Cyan. Empty refillable pen. Brand: Daler-Rowney.