Jacquare Cyanotype Set makes it easy. Just add water to the pre-measured contents, then mix the two equal amounts to create Cyanotype sensitiser. Now you are ready to coat fabric or paper to create photographic blueprints. The set makes approximately 65 prints 28 x 21 cm on paper or 50 prints on fabric. Part 1 = Potassium Ferricyanide, Part 2 = Ferric Ammonium Citrate & instructions.