Description
Putty has reached a new level of awesome! This Thinking Putty is thermochronic. A touch of your hands or something warm and the putty turns from a deep purple color to a bright fluorescent blue! When it cools, the purple returns. Made in the USA, each tin holds 1/5 lb of putty. Way more than you’d get in a plastic egg! This would make an incredible gift!
Recommended Ages:3+
