Use this arc shaped ruler set to make shallow or curved lines. Great for leaf shapes, Template Sizes: 4" 6" 8" 10" 12". Rulers are 1/4" inch thick, high quality acrylic insures safety when used with a hopping foot, Etched lines provide long lasting accuracy when quilting.,Use with any brand mid arm or long arm quilting machine., Package includes instructions for use safety tip design ideas., is an independent dealer not associated with Handi Quilter.