Set of 4. Good Measure Templates feature a special nonslip backing and clear markings in two colors. They are wider than nested templates, making them easy to hold. This set gives you 4 internal circle shapes in 1’’ increments, quilting circlesfrom 10'' to 13’’, and 4 external circle shapes in 1’’ increments, quiltingcircles from 14'' to 17’’ The measurements on the templates refer to the quilted circles that will be produced rather than that that of the plastic. Because of the size of these curves, this set is especially helpful when quilting a New York Beauty, Drunkard's Path, or Wagon Wheel quilt - or really any quilt with a large circular motif. They are also excellent for traveling around large appliqué shapes! Use this set with Every Semicircle Sets 1 and 2 for a full range of circle sizes. To use the internal shapes on this template set you must be able to lift the machine's presser foot. These templates are designed for ruler feet that are 1/2'' in diameter.