I previously replaced my refills every year in the Fall due to deterioration from Summer exposure. I've used these refills for many years and they last at least two years, sometimes longer.

These are by far the best wipers I've ever purchased period. They're durable, flexible and most importantly streak free. I've tried so many other brands but no other wiper brand comes close to the quality and performance of theses wipers.

For years I've replaced my wiper blade inserts with the Toyota brand inserts, and the inserts have performed well for about a year's time. About a month ago I decided to try the PIAA inserts, and they've performed about the same as the Toyota. If they last a full year I'll be happy.

Love this blade!!! I usually order from Amazon but I thought I would from PIAA directly this time. Won’t do this again. After almost a week, I finally called about shipping. Ended up getting it about 4 days later.