"Only Fischer items are suitable far all sanitaryware. This is useful for foors/walls/ceiling whether solid stud ...etc. Use this for toilets as the screws are not a ridiculously long as the toilet pan fixing kit. This really does work with all the plastic washers and appropriate plugs. The only disadvantage is that is is a little expensive but what does that matter when it is far more important to get the job right!!!ALL PLUMBERS/ bathroom installers do not leave home without this set."