Ronnie, the video is not that clear, but I can assure you that the windows were left spotless!! It was a monthly clean that I have been doing for about 4 years, as you can see in the vid I give the top of the pane a couple of horizontal swipes, followed by 2 good up and down strokes, finnished off with a rinse with the brush held just off of the glass, the sill is then wiped, job done!! As I said that particular house I clean inside as well, and they really are spotless!