i have run two different types of PIAA blades and the rain-x blades, they all sucked! -yes i know i just said a PIAA product sucks, calm down take it easy its not the end of the world, im just calling it as i see it and trying to be fair. i like the bosch icons as well, although i do run them in the 18" variety. anyhow yeah like someone else said its a wiper blade dont over think it. but the bosch blades have lasted longer than the other two brands and provided better results too. -i would take a rain-x blade over the PIAAs though, PIAA should of just stayed with lights if you ask me, not to impressed with anything else they have, their horns suck, their wiper blades suck... their lights are second to none though