This set of rotating templates helps the quilter using a stationary machine create circles with no marking!
Locate the pin in the center of the desired circle, and stitch with any 1/2 inch diameter ruler foot in the channel until reaching the end of the channel. Rotate the template and continue stitching.
The template is great for concentric circles, Baptist fan designs, and more. Creates whole size circles from 2 inches to 12 inches in diameter. (Another set is available that makes circles from 2.5" to 11.5" at 1 inch intervals by custom order)
Both 4.5mm for high shank machines and 3mm for low shank machines are available as the template wraps around the foot and needs good clearance all the way around the foot. Care should be taken with the point of the pin to not cause injury. I recommend a loose covering of painter's tape.