If you stamp on coated paper or vinyl on the surface, the ink will not be fixed securely and the protective effect will not be obtained. / Items that cannot be stamped　Art paper, coated paper, tracing paper, processed paper such as sulfuric acid paper, and Japanese paper. Other than paper, such as rough paper, bleeding paper, and plastic sheets. / Never lick or put ink in your mouth. / When using, please be careful not to get your clothes dirty. / If you get ink on your hands or fingers, wash it thoroughly with soap.