Finally wobble-free sitting, ease of installation

Who does not? The eternal wobbly toilet seats. I do not know how many hours of my life I spent with the tightening of our 3 toilet seats in the house. And mostly they were after a few hours again, "shaky".
About a tip I have come to the WC-Sisto and I have ordered the same for all these toilets. Within 15 minutes all 3 toilets were converted and since then slips and wobbles nothing more. The toilet seats sit rock solid and even the active exploration by children's hands (cover open and closed), the "seat strength" is not harmed.
The price of this "secure closure" is incredibly low and the shipping was fast turbo.
I'm excited and just annoyed that I got the tip not sooner.