Crazy Aaron's Thinking Putty Strange Attractor, Liquid Glass & Krypton Bundle Gift Set - 3 Pack Set of 3 Different 3.2 Ounce Tins of Super Magnetic Strange Attractor, Krypton Glow in the Dark & Liquid Glass! Strange Attractor contains a magnet, so this set is recommended for 8 years and older Charge Krypton with sunlight for fantastic brightness! Liquid Glass flows into a puddle. It should be in its tin when not in use. It is more likely to stain fabrics. Made in the USA of non-toxic silicone, never dries out & is easily removed from solid surfaces