The HQ Arc B Template Ruler is ideal for making shallow, curved lines or leaf shapes. Use the HQ Arc B Template Ruler with any mid or longarm quilting machine. Template sizes include 4", 8", and 12" arcs. Made using 1/4" of acrylic, the HQ Arc B Template Ruler ensures safety when using a hopping foot. Printed along the top of the HQ Arc B Template Ruler are etched lines to help with accuracy when quilting.