Worry stone fidget cubes are made of clay. They are baked in the oven to make them rock hard so they are nice and sturdy for fidgety hands. They are great for both children and adults when they are feeling anxious, upset, or overwhelmed. These great little sensory items fit perfectly in your purse, pocket, school desk, end table, or desk at school. They fit perfectly and discretely in your hand and are perfect for presentations at school or work and in social situations. Simply, hold one in...