if youve already got a plain wagtail imagine it with a strip of pad on one side when its wet just flip it over soap the window flip back and blade, sorry i cant explain it any clearer but the utube vids are better to watch
i hope i havent confused you more
the rubbers are very good and hard wearing it cuts into the corners very close for less detailing also, its the best squeegy ive used and is very fast
Brett.