これら

これら is the plural form of これ (this), meaning "these." It is more formal and explicit about plurality than これら alone.

DEMONSTRATIVE PLURALS:

• これら: these (near speaker)
• それら: those (near listener)
• あれら: those (far from both)

GRAMMAR:

• これらの + noun: these ~
• これらは: these (as subject)
• これらを: these (as object)

REGISTER:
これら is more common in writing, presentations, and formal speech. In casual conversation, これ is typically used even when referring to multiple items. Academic papers and news frequently use これら.

NOTE:
Japanese does not normally mark plurals explicitly. これら is used when the speaker wants to clearly indicate multiple items.