This stretchable, squeezable, bounce-able Thinking Putty is sparkling white that turns to shimmering waves of iridescent purple, pink and turquoise. And it glows sky-blue in the dark! It's perfect for tricks, games, experiments, or even stress relief! Each tin is 1/5 lb. of awesome FUN! For ages 5 yrs-teen, from Crazy Aaron's Putty World.