This permanent oil-based ink provides bold opaque color, yet cleans up easily with soap and water. They are excellent on cotton, polyester blends, linen, rayon, some synthetic fibers, as well as paper and cardboard.Details:Available in multiple colors2.5 fl. oz. (75 mL)Easy clean upAP Certified, nontoxic and conforms to ASTM D-4236Not for use on nylon