Jacquard's high performance Tee Juice fabric markers are fantastic on t-shirts. But they're not just for t-shirts—they work beautifully on almost any fabric—natural or synthetic! The Broad-Tipped Markers are available in two sets. Classic Set: Yellow, Red, Blue, Black Bright Set:Brown,Orange, Purple, Green Fixing: For washability fix by ironing on cotton setting for 2-3 minutes. Keep iron moving.