9603.21.00.00 - Toothbrushes, including dental-plate brushes

This category specifically covers toothbrushes, designed for oral hygiene and cleaning teeth. This also includes dental-plate brushes, which are specifically shaped and bristled for cleaning dentures or other dental appliances. The primary function and design of these items, focused on personal dental care, are key to their classification here.

This HTS heading distinguishes toothbrushes by their explicit designation for personal dental use, differentiating them from other toilet brushes covered under the broader sibling category, 9603.29. While 9603.29 encompasses other personal grooming brushes such as hair brushes, nail brushes, and eyelash brushes, this specific code isolates toothbrushes and their direct counterparts, dental-plate brushes, based on their specialized purpose.

As this is a leaf node within the HTS structure, there are no further subcategories to introduce. Therefore, classification within 9603.21.00.00 is final for any product meeting the description of a toothbrush or a dental-plate brush. The classification relies solely on the item's intended use and physical form as a tool for dental hygiene.