Heading 3926 is a residual provision that applies only when no other heading in the tariff schedule more specifically describes the article. The analysis should start with any heading that names the article by type or function (e.g., medical devices, toys, furniture), then apply the chapter notes for Section VII and the General Rules of Interpretation. Only after ruling out all more specific headings should 3926 be used.

Plastic belt buckles, zipper pulls, and similar clothing accessories are classified under subheading 392620 as apparel articles and clothing accessories of plastics, provided they are not more specifically provided for elsewhere. Metal or composite buckles and fasteners may fall under headings for base-metal or other materials. The material composition of the article governs when multiple headings could apply.