Crazy Aaron's Thinking Putty ION Glow in The Dark
Crazy Aaron's Thinking Putty, Glow in the Dark, Ion from Putty World is a handful of luminescent mind-bending fun. Plain white in daylight, once exposed to light, it glows a beautiful turquoise in the dark. Thinking Putty is proudly made in the U.S.A. by exceptional individuals with intellectual and physical disabilities.