Appearing in the folklore of cultures all over the world, the mermaid has fantastical powers that work in mysterious ways. Mystifying Mermaid Thinking Putty® is just as spellbinding. Awash with sparkling shimmer, it transforms from aquamarine to seafoam green with just the warmth of your hands.

As part of the Hypercolor® Collection this color changing Thinking Putty® is heat sensitive, meaning it starts one color and changes to another through heat transfer. The more you play the more the color will change!

Thinking Putty® helps build hand and finger strength through a fabulous tactile play experience with unique, unexpected properties and provides relaxing, yet stimulating interaction for anyone with sensory integration issues.

Crazy Aaron's putty is non-toxic, won't dry out, and won't leave a sticky or slippery residue on your fingers, so it's great for stretching, molding, bouncing, tearing, popping and playing by kids and adults alike.