Speedball Art Products-Fabric Screen Printing Ink Fluorescent. Perfect for fabric, paper and cardboard! Ink is permanent when properly heat set. Can be screen printed or painted on with a brush. This package contains one 8oz jar of fabric screen printing ink in a fluorescent color. Not for use on nylon. Water-based and non-toxic. Conforms to ASTM D 4236. Comes in a variety of colors. Each sold separately. Made in USA.