Selling big furniture on Mercari

For the first time I wanna sell a big sofa bed on Mercari. However I don't know how to handle the shipping. There is some selection inside the Mercari app for shipping but it's not clear how they do it?

The sofa is big and I want them to pick it up at my home and send it to the potential buyer, but I don't know what would be the cost? And apparently there is not a part in the app to limit the buyers area (obviously I don't want to send it from tokyo to another city, just inside tokyo).

Thanks.