This gootonium putty transforms from green to blue. These amazing color-changing powers depend on its 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.

- Ideal for fidgeting, sculpting, and stretching, providing endless hours of entertainment.
- Safe and Non-Toxic: Made from high-quality, non-toxic materials

This elemental stuff is a non-Newtonian matter that acts like a fluid and a solid. It can also stretch, bounce, shatter, and do other cool things.

20 grams of glorious