Sunny FashionFlower Girls Dress Blue Belted Wedding Party Bridesmaid Size 4-12

I need this dress by tomorrow the 12th. wgen i put in for next day delivery it said tuesday. but now i'm looking at the order it says wednesday.

I want this dress for 8 year old. not sure of the measurements?

Does the grey dress come with a blue belt or is that just the description?

Mi niña tiene 4 años cual size le va a ella en este veztido