This charming creature can be your enchanted best friend. Magic Dragon Thinking Putty includes the marvelous Hypercolor effect and changes from forest green to golden yellow using the heat of your hands. The magical bronze sparkles will captivate your gaze! As part of the Hypercolor Collection this color changing Thinking Putty is heat sensitive, meaning it starts one color and changes to another through heat transfer. The more you play the more the color will change! Ages 3 & up.