Hi, I'm sure someone has figured this out but in case someone hasn't, the 50-60$ refills on Ebay and similar are crazily priced. I went to NAPA and bought the cheapest rear blade they had. It is the same size as the light wipers. I pulled the refills out by spreading the lock tabs and did the same to the new one. I cut the rubber (take the stainless blades out) to the same size as the light wiper. I used the stainless from the original and put them back together and exactly the same for 9 bucks and still have enough rubber to make another set.