As the sky turns toward dusk, purple flashes one more bolt of blue before night. Night Fall Thinking Putty changes from violet to blue with just the heat of your hands.

Designed for ages 8 years and older, this set comes with a tin filled with 1/34lb of Thinking Putty that is shimmery multicolored in orange, red, and gold---with the color shifting depending on the angle and the light! This putty is fun to play with, but also provides stress-relieving qualities while you play.

Please note: Thinking Putty should be used by children ages 3 years and older; like all creative toys, Thinking Putty can get messy if left alone with young children and should not be used by children under three years of age for this reason and should always be used by older children with supervision. Thinking Putty is best left in its tin when not in use; it can stain. To remove if stuck on shirt/pants/sofa/rug/sheets, use rubbing alcohol from the drugstore over the stuck pieces (the greatest percent isopropyl alcohol is best in the rubbing alcohol).