Speedball Water-Soluble Screen Printing Inks for paper and cardboard. The 10 bold colours dry to a smooth, matte finish and clean up easily with soap and water. All colours carry the AP Seal.
The AP (Approved Product) Seal identifies art materials that are safe and that are certified in a toxicological evaluation by a medical expert to contain no materials in sufficient quantities to be toxic or injurious to humans, including children, or to cause acute or chronic health problems.