Featuring archival-quality, sunlight sensitive fabric squares, this pack from Sunography is an ideal introduction to cyanotype printing. Measuring 6 x 6" & made using 100% cotton, the 6 included fabric squares feature an assortment of eye-catching colours & have been prepared on both sides for clear, finely detailed two-sided prints when exposed. Dating back to 1842, cyanotype was a forerunner to modern photographic processes & was popularised by Anna Atkin. How to Use Simply place any object or transparency onto the fabric, expose in bright sunlight & rinse with water to reveal a richly coloured print.