How do fold hoop skirt crinoline petticoat back up and place into a bag?

Today we received message from our customer, she asked for us how to fold hoop skirt crinoline petticoat back up and place into a bag. So we do the video to help customer how to fold the petticoat .
In first,Two hands grasp the distance, one positive and one negative, overlapping.
Practice it a few times and you will succeed .