As large as softballs. I've posted this here as a reference. As far as I can tell, there is no meaningful difference from this and other equally large eggplants in terms of flavor, aroma, texture or color. Only in shape.
A site about "competitive" foods; e.g., my chile is better than yours. Also covering food fermentations; sourdough bread, pickles, cured, and smoked meats, cheese, seafood, and food and foodways.