Mr fox the Extreme brush's are like having a toothbrush on the end BUT clean as good as having old brick sill brush

I did not like it and put the white sill brush back on. Then give it a go again and all I can say is WOW what a brush, it was not that I did not like it at first, more I did not trust it to clean as good. Now I trust it and don't think I need to go over and over the windows as I did at first with it. Now we just need a extreme sill brush

like garlic bread,it's the future
