HTS code 9612.10.10 covers "Typewriter or similar ribbons, inked or otherwise prepared for giving impressions, whether or not on spools or in cartridges; ink pads, whether or not inked, with or without boxes › Ribbons › Measuring less than 30 mm in width, permanently put up in plastic or metal cartridges (whether or not containing spools) of a kind used in typewriters, automatic data processing or other machines" under the US Harmonized Tariff Schedule. This is the official duty rate charged by US Customs when this product is imported into the United States, sourced directly from the U.S. International Trade Commission and refreshed daily.