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  • 3D printable sensory molds made with Mad Mattr, featuring colorful geometric shapes for creative, screen-free play.

    Free 3D Printable Molds for Mad Mattr!

    Mad Mattr playtime never ends! Download and print these "cookie cutter" STL files for some wild and mind-bending fun. Each mold tessellates, meaning it interlocks with another mold or itself...

    Free 3D Printable Molds for Mad Mattr!

    Mad Mattr playtime never ends! Download and print these "cookie cutter" STL files for some wild and mind-bending fun. Each mold tessellates, meaning it interlocks with another mold or itself...

  • Hands building with colorful Mad Mattr blocks.

    What is Mad Mattr? Discover its sensory magic

    Mad Mattr isn’t just play—it’s a sensory experience that inspires creativity, calm, and connection. Discover what makes this moldable, screen-free compound a favorite among kids, parents, and educators.

    What is Mad Mattr? Discover its sensory magic

    Mad Mattr isn’t just play—it’s a sensory experience that inspires creativity, calm, and connection. Discover what makes this moldable, screen-free compound a favorite among kids, parents, and educators.

  • Children playing with Mad Mattr clay at home, building colorful shapes and figures for sensory and STEM learning.

    Bringing Sensory and STEM Learning Into Everyda...

    Bringing Sensory and STEM Learning Into Everyday Life Learning doesn’t have to stay in the classroom. At home, every day brings new opportunities to teach and inspire our children through...

    Bringing Sensory and STEM Learning Into Everyda...

    Bringing Sensory and STEM Learning Into Everyday Life Learning doesn’t have to stay in the classroom. At home, every day brings new opportunities to teach and inspire our children through...

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Mad Mattr is the award-winning, super-soft and dough-like material that easily molds and shapes into endless creations.

Mad Mattr never dries and cleanup is a breeze! Its unique, non-toxic formula is also wheat, gluten, and casein free.

Shop Mad Mattr!

  • Inspire creativity and imagination

    Mad Mattr allows children to mold, shape, and create virtually anything they can imagine. It provides an outlet for creative...

  • Sensory Play

    The soft and pliable texture of Mad Mattr provides a satisfying sensory experience. It can be stretched, squished, and...

  • Stress Relief

    Playing with Mad Mattr can be calming and stress-relieving. The tactile nature of the compound can help reduce anxiety and...
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It’s the moldable and mesmerizing sand that’s ideal for learning through play.

Available for sale to the US Educational Market only.

Shop Kinetic Sand

Relevant Play designs and sells toys to nurture the creative genius that naturally lies inside all children. Our award-winning playthings can be found online and at retailers around the world.

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