When should you use ser rather than estar for the verb "to be?" profession
permanence
time
all of the above

If something seems temporary, use estar, if it is more permanent quality, use ser. When you are thinking about whether to use ser or estar, consider which question the verb “to be” is answering. If you want to talk about ‘where’ something is, use estar.

Bolsa can be referring  to any type of bag,