30 Vivid colors make this Chalk set a must for your Shrinky Dinks project. Use these chalks to color in images you trace or Rubber Stamp onto our Shrinky Dinks Frosted Ruff N' Ready shrinkable plastic (Item D100-10A). Each kit comes with two shades of each color, and THE most ingenious applicators we have seen. Clip on one of the three sizes of cotton applicator tips to the alligator clip, rub across the chalk and apply to your Shrinky Dinks plastic. These chalks make shading your project easy yet very professional in appearance, and MOST important these chalks keep their vivid colors after baking, and are non-toxic, so they are safe for every member of your family to use. Use them for shading other coloring medias as well, like colored pencil. Rubber Stamp or draw your image on the Shrinky Dinks sheet...use your choice of colors to shade and decorate your image on the roughened side of the plastic. Bake to shrink. The transparency that the chalks offer allows you to hang your piece in the window for a one of a kind sun catcher. Chalks are a wonderful addition to your collection of Shrinky Dinks supplies.