This starter set has four jars of permanent acrylic screen printing ink. They are water-based, nontoxic, non-clogging, highly opaque ink for signs, posters and fine art prints. Use them for printing on paper, posterboard and wood. They are ideal for for screen printing or painting on with a brush. The ink cleans up with water and contains no solvents. Details:Black, process cyan, process magenta, process yellow4 oz.4 jars of screen printing inkWater cleanupNontoxicDo not use on metal, plastic or fabrics that are to be laundered