This 1/4" clear acrylic 5" wide long arm ruler comes in 2 handy sizes of 15" or 18" lengths.
Fits 1/2" (0.50 mm) hopping foot. A custom 0.53 mm hopping foot can be ordered.
Handy reference lines in the centre, every 1/4", 45° and 60° and on left and right edges.
I designed this ruler to assist me in stitching straight lines from corner to corner on both horizontal and on point blocks in one smooth motion with better accuracy and without re-lining up a shorter ruler multiple times allowing more stitching with less "unstitching".
The edge opening is great for easy maneuvering along the quilt top.