Balenciaga Ho hang expertise

Good evening everyone,

I just bought a bottle of Balenciaga Ho Hang perfume but not an ordinary bottle, mine is 2L at least. I don't know anything about perfume so I need some informations if you know something about these kind of bottle for this specific perfume.

I know that huge false bottles could be used for publicity or in a store but these bottles actually doesn't contain perfume, mine does.

Please share your knowledge !