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

• 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.
• Made from high-quality, non-toxic materials