Grab two new, exclusive Chalkology® Ink colors, Perfect Purple and Brilliant Blue, in this Primary Pair Ink Duo! Only available through January 1, while supplies last. Chalkology Ink offers permanent color when heat set and is ideal for fabric, apparel, and glass. Read all use and care instructions for fabulous results. Not food safe. Chalkology Ink jars include 3 US fl. oz.