Mad Mattr is an addictive, super-soft modeling compound that shapes easily! It feels like a fun middle-ground between kinetic sand and modeling dough. Press it, mold it, knead it, stretch it, squeeze it, squish it, sculpt it, shape it, build it - or just pull it slow and watch it flow! And clean-up is a breeze since it sticks to itself and not to you. Mad Mattr never dries out no matter how long it is left out; so, it can be used over and over again, providing endless, fun-filled hours of stretchy, open-ended play. Not only is Mad Mattr perfect for relaxing and calming, but it's also great for strengthening fingers, hands, wrists and more. We offer a variety of colors and sizes, so browse around and see what works for you! Mad Mattr's unique, non-toxic formula is gluten-, casein- and wheat-free, and available in a variety of colors that can be mixed together! For Ages 3-103.