…a lot of us use to stop rulers sliding – They also help to get a smooth cut over seams!
I like to use a 3 x 9” ruler to trim pieces but found that the ruler would “spin” or move too easily if it had to go over a thick seam. I tried to push down on the ends so that the ruler would curve. The ends would touch the surface but after cutting 20-25 times my hand was aching and the cut was wavy!
Discovered by accident that the glue dots on the end corners of the ruler allowed it to stay level over the seam and not slip. Now I put them on all my small rulers.
