Speedball fabric block printing inks assortment set of 6an easy to order set of the essential colours from the speedball fabric block printing inks range contains 6 x 75ml tubes black red blue yellow green and opaque whitespeedball fabric block printing inks are oil based but non toxic and equipment can easily be cleaned with just soap and water they dry to the touch overnight but must be air dried for 7 days before they go in the wash suitable for printing onto cotton polyester blen