Great for drawing designs on T-shirts and fabrics, these soft and blendable colors are like oil pastels. Heat set with iron for permanency. Non-toxic. The 7-Color Set includes: black, blue, green, red, orange, yellow and white. The 15-Color Set includes all of the colors in the smaller set plus brown, blue green, dark green, gray, ochre, pink, sky blue and yellow orange. Pastel Dye Sticks are ideal for writing and drawing on natural fabrics (not synthetics). Create your own fabulous paintings and pictures. Permanent colours that won't wash out. Create your favorite design with fun, easy-to-use dye sticks Brilliant, acid-free pigment Simply draw or stencil a design on a piece of fabric, cover with soft paper and set by pressing with an iron