For a long time I have US-dimensional converted, it was but eventually just so tired. The M-Cups here are really good - for all relevant variables is a separate measuring cup, where they are also very easy to combine. The complicated Rumrechnen definitely has an end! Qualitatively, the M-Cups are for their price perfectly fine. Keep it out easily when they fall down again. They are entirely of plastic, but really is not particularly sensitive. How do they behave in the dishwasher, but I can not judge. In normal use, but they are not harmed in any case.