Ever drop oil into water and get mesmerized by the iridescent colors? Crazy Aaron's Super Oil Slick thinking putty captures those colors without doing any environmental damage! Crazy Aaron's putty is non-toxic, won't dry out, and won't leave a sticky or slippery residue on your fingers, so it's great for stretching, molding, and playing by kids and adults alike! Made in USA. Choking Hazard - Small Parts Not for children under 3 years. Metal tin contains 3.2 oz of putty.