This is the 14467th most frequent Spanish word.
éstas
"Éstas" means "these" when referring to feminine plural nouns.
Here, 'éstas' functions as a demonstrative pronoun, asking about a choice between specific items that are described as 'these' with the implication of closeness or relevance.
¿Quieres llevar éstas o prefieres otras?
Do you want to take these or do you prefer others?
In this context, 'éstas' refers to a specific subset of items (likely previously mentioned), distinguishing them from others based on the preference or judgment of the speaker.
Me quedo con éstas porque son más bonitas.
I'll keep these because they are prettier.
In this sentence, 'éstas' is used as a demonstrative pronoun to refer to a specific group of items (the 'keys') that are mentioned or identified in the conversation, emphasizing proximity.