This is a Quilt in a day technique. You release the two thread on the vertical (first seam stitched in jointing the two squares) then let the little pinwheel twirl in which ever direction they want to go. Then kind of smooth down. You will have a tiny pinwheel pattern on the back center. Press flat from front ...try it I know you can do it..sorry I can not be there to show you
Judy in Phx, AZ