I am not sure what it is called or I would search it. I watched a tute on paper piecing(I still don't get it!) and she had a ruler that ad a step at 1/4", I would like to get one even if just for marking my seam allowance, but as I said I don't know it's name or where to get it.
Also as long as Iam typing has anybody used it? is it helpful?
Thank you!
David