Formulated to possess all of the working properties that artists demand, Speedball Professional® Relief Inks are made from the highest quality, lightfast pigments and contain no fillers. They roll out consistently and transfer beautifully, resulting in intense, crisp, archival prints. These professional-grade inks all carry the AP Seal and can clean up easily with soap and water or traditional window cleaner. Most notably, the Speedball Professional Relief series boasts its flagship color-Speedball® Supergraphic Black, created by world-renowned relief artist, Bill Fick. Also included in this set are Quinacridone Red, Hansa Yellow and Phthalo Blue