There are only four demonstrative pronouns: This, that, these, and those.
They can be used as subjects or objects by themselves or with another noun to become more specific.

• This is my favorite game.
• This game is my favorite.
• That is a very old tree.
• That tree is very old.
• These cookies are great!
• What about those books?

The demonstrative pronouns are differentiated by two characteristics: proximity and quantity.

This and that are singular. (only one)

These and those are plural. (two or more)

This and These are close/near.

That and Those are far.