Thinking Putty is great for children and adults. Terrific for keeping hands busy, plus offers a great option for stress relief and relaxation. Thinking Putty can be shaped, kneaded, stretched and much more. Features a soft, pliable texture. As the day nears its end, at dusk, the purple sky flashes one more bolt of blue before night. Night Fall changes from violet to blue with just the heat of your hands. 0.47 oz. of putty, packaged in a convenient storage tin. For ages 3 and up.