Solarfast Fun Pack - 4 fl oz each of Green, Teal & Blue Dye develops when exposed to sunlight. Color is washable and lightfast. Reproduce b/w & grayscale photos, continuous tones, shadowprints & more using SolarFast Film.. Works great on fabric, wood, artist paper & other natural fibers Pack contains 3 4-oz bottles, 1 each of Green, Teal & Blue Solarfast Wash is recommended to wash out undeveloped dye when project is finished.