The Flying Geese unit is wonderful and versatile in the world of quilting.Flying Geese X 4Ö No Math Ruler. With no math, no waste and no triangles to cut. Make perfect Flying Geese, Half Square Triangles and Quarter Square Triangles. Complete instructions included.Also available, Flying Geese & More by Joan Hawley is a technique book based on making geese using the squares together. With 150 original and favorite block designs you will find a few simple ways to use geese that will give you goose bumps.