Jacquard Tee Juice Fabric Markers are high performance, free-flowing, and fantastic on t-shirts. They're loaded with color that flows as you need it, and are ideal for filling in larger areas - just squeeze to increase the color flow. Works beautifully on almost any fabric-natural or synthetic! Use them for; T-shirts, canvas, jeans, handbags, furniture, and shoes. Non-toxic, acid-free, archival, lightfast. Fine Tip. Green.