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! Thinking Putty helps build hand and finger strength through a fabulous tactile play experience with unique, unexpected properties and provides relaxing, yet stimulating interaction for anyone with sensory integration issues. Thinking Putty is non-toxic, won't dry out, and won't leave a sticky or slippery residue on your fingers, so it's great for stretching, molding, bouncing, tearing, popping and playing by kids and adults alike. From Crazy Aaron's Puttyworld, for ages 3+ yrs.