The Fons & Porter Flying Geese Triangle Ruler makes quilt crafting easier and simpler by eradicating the need to do guesswork on calculations. Specially made for the Flying Geese units, this quilting tool helps cut triangles in finished sizes from 1 x 2 inches to 4 x 8 inches. This ruler is designed in a way to help the quilter make both large goose triangles and six smaller sky triangles with ease from the strips of the same width.