HTS code 9608.99.40.00 covers "Ball point pens; felt tipped and other porous-tipped pens and markers; fountain pens, stylograph pens and other pens; duplicating styli; propelling or sliding pencils (for example, mechanical pencils); pen-holders, pencil-holders and similar holders; parts (including caps and clips) of the foregoing articles, other than those of heading 9609 › Refills for ball point pens, comprising the ball point and ink reservoir › Other › Balls for ball point pens › Parts of articles provided for in subheadings 9608.10 and 9608.30 (other than balls for ball point pens)" 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.