A very good fit. The assembly works even for inexperienced screwdrivers. Toll I think the opportunity to match the shape of the toilet with the interchangeable rubber elements to the seat. Background: Not every dish is just on the edge. The vault is in the middle mostly down, but that probably varies greatly (Look after!). And so the goggles not only the front and back rests, but also between them can be the contact points between them adapt with denGummielementen. For me it worked very well. I have not seen anything. The Befestungsmechaniss the entire seat can be wiele ways to adjust. The Klappmechanis is a great thing. He will go back down quietly and does not move his tongue.