What if a mad scientist Frankensteined together all the flowy fun of play sand and all the moldable malleability of Play-Doh? You’d get Mad Mattr, of course!

The weird wonder-material is a sculptable blob that keeps your hands busy as you stretch it, pack it, knead it, and watch it flow.

So why would you ever want to buy something that seems like it was cooked up by an evil genius? Because Mad Mattr is so fun!

Please note: The Brick Maker Set includes the plastic mold pieces as well as 2 ounces of Mad Mattr.