Whoever painted glasses, has not give much trouble. At the lower Innenraendern the dark brown base material looked out. Did not specially taken the cheapest seat in order to exclude a problem. An isolated case? Maybe. Anyway returned, zureuck money, new seat for visual inspection at the hardware store bought.
Had the seat only unpacked and never installed. Assume that he is doing what he should, once it has been screwed to the bowl. But for me a letdown.