Hooray! A set of circles in the sizes you need and they’re nested, which allows you to stitch out perfectly spaced double spines.
What more could you ask for?

The small template stitches out a 4 inch circle. The medium template stitches at 3 inches inside the template and 6 ½ inches outside the template. The large template stitches out at 5 ½ inches inside the template and 9 inches outside.  (finished circle sizes assume that you are using a ½ inch wide hopping foot)

Templates are laser cut for precision and have crosshair markings that allow you to effortlessly center your template within the quilt block. The two larger templates have slits that allow you to gently open the ring and slip it around your hopping foot, which will enable you to stitch inside the template.