The UV-reactive Putty is an amazing moldable putty that changes color when exposed to ultraviolet light.

Like any standard putty, you can mold, stretch, twist, sculpt, bounce, and tear UV Putty. But when you introduce the included UV keychain light, you can draw, write, and scribble bright designs directly onto the surface of the putty.

Expose the putty to sunlight and watch it turn a bright hue in a matter of seconds! The color changes are as temporary as the putty's shape, so you can reuse the putty over and over again.

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