The children like to write with the stylus and erase also works great, but the ink faded in heat. My son has held a piece of paper on which he had written with the Pilot Frixion ball rollerball pen in black, before the hot stove plate. The radiant heat has been sufficient to allow the ink to fade entirely. The radiant heat was not hot, but warm on the skin. I find it a little weak for an ink. We have repeated the test for fun and the result was the same.
