Glow in the Dark Thinking Putty is hypnotic and irresistible!
Milky white in daylight, their glow magically appears when the lights dim.
After exposure to light (the brighter, the better), these colors will glow for hours.
Made in the USA!
Each metal tin is hand packed with 1/5 lb of Thinking Putty, much more than you get in a plastic egg!