The build quality and design are not only excellent mechanical design. After the first toilet seat from Cornat "Brown Flower" with soft, wood core was (MDF) defective after only 3 years (1 Metallschanier broken) we chose the African elephant. After installation, I realized that the plastic buffer not back obligations under the glasses on the ceramic basin (5 mm air gap). This means that the entire body weight of a person pressing on the hinges. First, the tiny little screw the hinges loosen on the glasses, tear out. When pastes onto this subsequently breaks again sometime the hinge. So wars at the first cover and so shall this also be made in a short time through these bad design. Since the most stable MDF core is useless. So a massive toilet seat was supposed to last forever. In OBI I have also toilet seats of "seats" looked at with the same result. The rear bumpers at the glasses float 5 mm in the air. The buffer should be high 15 mmm instead of 10 mm, then the glasses plan would rest on the ceramic and intercept the persons weight. Have the toilet seat be returned immediately and therefore still 3 stars. With built-in expiration date for such a massive seat me my money's too bad. Now have a toilet seat from "Eisl" from the hardware store, the ligt plan on the ceramic basin.