We fell in love with these shades when we saw that they opened from both top and bottom (great for our contemporary remodeled master bath). We also ordered one for another bathroom. Unfortunately they didn't work for our 1980's windows - the directions didn't give enough information as to pre-requisites for window clearance and size. We would have had to build our windows out a good 4 inches for the shade to be flush mounted on the inside. Our outside window trim is angled, as it is for most windows, and they only fit on flat exteriors. Bummer....it's just what we were looking for. We've sent them back and are awaiting our refund. The good news is that we explained all this to the nice Overstock rep on the phone and they are taking care of the return shipping, which we really appreciate!