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Glow in the Dark Thinking Putty is hypnotic and irresistible!
Milky white in daylight, their glow magically appears when the lights dim. You can even do cool tricks with Glow in the Dark Thinking Putty. After exposure to light (the brighter, the better), these colours will glow for hours.
Made in the USA.
Each metal tin is hand packed with 90g of Thinking Putty, much more than you get in a plastic egg!