A friend gave me a Mr. Clean Magic Eraser a while ago and I never got around to trying it, until now. They are great! I have been looking at this black scuffmark on my white washing machine for several weeks. I had tried several cleaners and none worked. Today I tried the Magic Eraser and in just a few strokes the mark was gone.  It is great for walls, baseboards, switch plates and much, much more. I highly recommend Mr. Clean Magic Eraser. Please use as directed.