Making Pinwheels

Make four Half Square Triangles (HST), which measure 1/2 * (Finished size/2 +. 1"). Nest the seams of two HST and sew them together to make HST Pair. Repeat with the other two HST. Press seam to darker fabric. Nest HST Pairs and sew them together. Spin the seams. Press and trim to 1/2" + finished size.