Instructions come with the ruler. Just cut strips according to the widths marked on the ruler and align the ruler on the strips using the appropriate horizontal or vertical line to cut triangles. Nip the points using the ruler's special engineered corners for perfect sewing alignment.
The ruler is also marked with Perfect Patchwork Template Equivalents. Use the Flying Geese Ruler to cut large 9+9 (Set B), 2+2 (Set A), and 94+94 (Set Q) triangles, too!
In fact, you can make 35 sizes of Flying Geese units with our acrylic products! And here's how to use one triangle to cut a triangle twice as big.