Brilliant ink colors dry without caking - fabrics remain soft. • Perfect for use on quilting projects. • Made for use with Fantastix coloring tool. Place the tip of the Fantastix into a bottle of API. The Fantastix will soak the ink into its barrel, allowing the tool to be used like a pen. • Heat set on textiles with an iron. • Always test on a scrap piece of material before using on final project. Application: • Fabric • Unpainted wood • Uncoated paper • Ueather(tanned leather) • Unglazed pottery Drying time: Apply heat source for 15 seconds (iron or hair dryer). Varies based on material, humidity, etc.