Actually, the spray bottle was supposed to spray "foam". But she blows rather a rough, blistered drool on a single site with a good to be straightened but bad to be distributed spot beam. That's actually not what you need for cleaning of surfaces and sink. Here it is also no description here how they should do it for right or better. The Dr. Schnell Milizid means I have used.
The material of the bottle is good and high quality. Helps only not really.