HTS code 5402.49.11.00 covers "Synthetic filament yarn (other than sewing thread), not put up for retail sale, including synthetic monofilament of less than 67 decitex › High tenacity yarn of polyesters, whether or not textured › Other › Colored multifilament, of modacrylic, untwisted or with a twist of less than 5 turns per meter, measuring not less than 22 decitex per filament, certified by the importer to be used in the manufacture of wigs for dolls" 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.