ruber agane no no no no no no no no no no no ,thay dont use ruber on the two bits of glass , when ther still under garente the companys tell the custy its the man with a stik that didet as a get out .had one custy told that on kicen window the w****r , he sade you pushed to hard on the window , so i sad com and look at the the bathroom window 12" by 7" top opener , did i push two hard on that as well , when one blows the outhers are not far be hind espesualy on the suny side