This gootonium putty transforms from green to blue. These amazing color-changing powers depend on temperature. The putty starts out green but as you play with it, heat from your hands change it to blue-ish teal. Plus, it has all those classic putty skills, like bouncing and peeling comics from the newspaper.

-Gootonium color changes with temperature. Heat it up in your hands or quickly cool it down with some cold water.

-deal for fidgeting, sculpting, and stretching, providing endless hours of entertainment. A great stocking stuffer! 

-Safe and Non-Toxic

-Made from high-quality, non-toxic materials 20 grams of glorious putty