Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Tools and Equipment (hierarchy name)
5. equipment
6. [equipment by context]
7. [equipment for costume]

Anotations

Scope note:

Devices of wood, metal, or plastic inserted in boots to maintain their shape when they are not being worn. Also, machines in a workshop or factory that force wooden parts into a boot to smooth out wrinkles during finishing.