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Mix-up the Activator Solution and squirt your favorite String Slime™ color into the liquid. The instant the two liquids touch, you get solid String Slime. It’s that easy! Explore the science of polymers with this exciting kit. No glue, no borax. Amazing fluorescent colors won’t stain your hands. Pink, Blue, Yellow and Clear String Slime™ colors.

A Large specimen jar of growing body parts: a severed hand, a lopped off ear, a fat nose & a pickled brain. An essential for any mad scientist laboratory!