I got tired of buying blades every year so I decided to give the silblade flex blade a try. These are silicone blades. I'll never buy any other blade but these. They have been on my van for 5 years now and they still work like the day I put them on there.They are a little pricey (about $27.00 per blade) but if you add up 5 years of normal blades I'm way ahead of the game and these are still going. I highly recommend these. Thanks for listening Bob Mac