Caveat: very fast and friendly service !! For 5 star !!! The low purchase price motivated these parts to try, an ancient toilet and a bad buy at OBI (house brand, wooden seat, expensive and apparently scrap) failed due to the even my very talented friend craft. When I saw the 2 bad / wrong cut the hose toilet Sisto, I thought that one can safely make decent. Should have cost only pennies. Handling super easy, the basic idea of simple and ingenious, they fit - but the toilet lid wobbles still annoying back and forth. The whole thing is not no longer so extreme, sure, but so rock solid as described here everywhere. Rather just as it has been the predecessor without toilet Sisto also. So improvement, you can try, but no guarantee.