This is used by putting the aerator in the place where the cork goes on the wine bottle. Instead of pouring a whole bottle of wine into a decanter, this saves the wine and has the same effect. It is a cool little design and is easy to wash, easy to use, and cute.
I totally loved this product. It was worth the investment. I plan to buy more of these as gifts.
This is very handy for aerating just a glass of red wine when you don't want to pour the whole bottle into a larger decanter. It is small, easy to use, easily cleaned, and so nice to have in such a small size for my new tiny home. Got to use it about a week later at Christmas with family and friends.