This 1/4" clear acrylic long arm ruler comes in 2 handy sizes of 5" wide by 15" or 18" long.

Handy reference lines in the centre, every 1/4", 45° and 60°.

I designed this ruler to assist me in stitching straight lines from corner to corner on both horizontal and on point blocks in 1 motion without re-lining up a shorter ruler multiple times.