You do pretty well have the gist of it. You choose your fabric, send it to the hostess, she sends it out to each player We get to choose what pattern we want to make for you, adding fabric from our stash. We send the finished blocks back to our hostess, who divvies them up and sends the finished blocks back to us. We pay all of our own shipping costs both ways. Our hostess is our quality control. She keeps everything running smoothly for all of us. We all know how much time and work she's putting into this for our benefit. She is much, much appreciated. Without her, there would be no Boom swaps.