Jacquard Tee Juice Markers are non toxic fabric markers for all ages from pre-school to seniors. Simply squeese the tube and out comes a juicy color of free flowing fabric ink. You control the amount of color by how you squeeze the tube. Ideal for t-shirts, jeans, canvas, sneakers, chairs, umbrellas, clay pots, wood, clay, anything porous. Washfast and color fast. Simply set the color with the heat of your home iron.