Can't find a replacement O'lipfa 12.5" square inch ruler
My original O'lipfa 12.5 square inch ruler, one of my "go-to" tools is losing its markings and I have been looking for a replacement to no avail. This particular ruler has square on it rather than just straight lines and angles lines as well. I've attached a photo for reference. Anyone know where I can find one? Thanks for your input.