&&The product at issue is a fountain pen ink cartridge set comprised of ten black ink refill cartridges packaged in a cardboard box for retail sale.

&&Heading 32.15 provides for printing ink, writing or drawing ink and other inks, whether or not concentrated or solid. The product is used with a calligraphy fountain pen which is designed for writing and drawing. The Explanatory Notes to heading 32.15 state that ink-filled cartridges for ordinary fountain pens remain in this heading. Thus, the product at issue is properly classified in heading 32.15, specifically subheading 3215.90, as other inks.