Good Measure by Amanda Murphy Low Shank - Set of 5 Circles 1/8" thickness. Allows you to make any circle perfectly. Made for long shank machine. All with non-slip backing. Non-Slip Surface Good for Stitch-in-the-ditch, Echoing, parallel lines, and cross- hatching. Can be used with domestic machines.

These rulers are for low shank thickness.

Amanda Murphy Good Measure Quilting Rulers feature a non-skid backing and two colors of lines for ease of quilting.  Directions are included.