Speedball Fabric Block Printing Ink 5oz Green Unique oil-based ink cleans up easily with soap and water. For use on cotton, polyester, blends, linen, rayon and other synthetic fibers (not for use on nylon). Also works great on paper and cardboard. This package contains 5oz of block printing ink. Conforms to ASTM D 4236. Comes in a variety of colors. Each sold separately. Made in USA.