The key is to find out whether it is inkpad for ordinary office use or inkpad for painting and calligraphy. Those that cost only a few or a dozen pieces in iron boxes and plastic boxes are for office use and are not suitable for calligraphy and seal cutting. If dozens or hundreds of pieces are packed in ceramic boxes and marked as calligraphy and painting inkpad, they can be used for calligraphy and seal cutting. Calligraphy and painting inkpad has many colors, not just red.