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    Contact Us

    611 Corporate Circle Suite B
    Golden, CO 80401
    Company Contact
    Frank Adler
    SVP Business & Product Development, Marketing & Creative

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    Relevant Play, creators of Mad Mattr—The Greatest Mattr in the Universe, is passionate about creating awesome toys for children, that encourage imaginative and open-ended play. We believe playing and learning go hand-in-hand and that it should always be fun!

    Our compound products include Mad Mattr, Kinetic Sand, Shape It!, and Toki Dough, a magical arts and crafts activity brand. To complement these we have a range of innovative molds and accessories to further enhance the enjoyment!

    Relevant Play products can be found online and at retailers around the world. Our offices are located in Denver, Colorado and Dublin, Ireland.


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