Description
Just as an evening sky melts into the dark of night, Twilight Thinking Putty’s deep purple color disappears with a touch of heat to reveal a fluorescent blue complexion. Grab some stress relieving, hand exercising, mind expanding, totally fun and addicting Thinking Putty! These Heat Sensitive Hypercolors really make their mark! Hypercolor Thinking Putty is thermo chromic-just a touch from your han
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