Use HQ rulers with any brand mid-arm or longarm quilting machine. Made from high quality acrylic, 1/4″ thickness ensures safety when used with the hopping foot, HQ rulers are etched, not printed, to provide long-lasting accuracy when quilting.
The HQ Ditch Ruler was designed to aid in a perfect stitch-in-the-ditch every time.  Line the notches up with your ditch line and stitch your seam.

Design Sheet:
HQ ROMC – Ditch Ruler