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.

• DESCRIPTION
• 2" tin
• Made in the USA
• RECOMMENDED FOR
• Interest:  The Explorer + The Naturalist
• Age Group: Preschool (Ages 3 -6),  Older Children (Age 6+)