Ruled paper, squared, A3 size, wood-free. Contents of 1 package: 400 sheets. For writing, drawing, and note-taking, can be used with graphite and colored pencils, ballpoint, felt-tip, and other pens, markers, crayons, and charcoal (the latter may show through the paper), written text can be corrected moderately with correction fluid and erasers, cannot be cleaned, keep away from open flames and moisture.