Ray-Banwomens 0RB4171 Sunglasses (pack of 1)

I've never bought Ray-ban's from Amazon and a bit nervous because I might get a fake. How can I tell these Ray-ban Erika lenses are real?

Do they have the "Ray- Ban" sign up on the left lens?

Are these standard size or size small?

do they come with original case and paperwork??