This says "standard clear ruler" but very clearly came as a stainless steel ruler. It's a good ruler, but "clear measurement" is a bit of a misleading title. I actually needed a clear ruler, see-through. It's a good ruler for the price but I had to find something else for the use case.
As noted ruler is labeled a 12” ruler - markings are not quite to end of metal but that’s usually not an issue. Makes a fine guide for cutting a straight line on paper with a razor craft knife on an appropriate surface. Appears to be stainless steel with seemingly durable inch (down to 1/16’s) and centimeter (including mm) markings. Has cork backing so tends not to slide as bare metal might on some surfaces.