Ok here is my experince in guitar strings... i used to use d'addario's,, they corrode wayyyyyy too fast and arent worth the money for 4 bucks a pack,, i tried fenders,, not bad but the same they corrode also. so far,, the best strings on the market i have found that last,, BUT,, if you are willing to pay 9 dollars for a set,, and i am telling you guys,, they are worth every penny,,, and they do not corrode,, and they last up for along ass time,, you need to buy the brand Elixir. i m not bullshitting you guys on this,, i have tried alot of brands like daneelctro,, martin,, gibson,, boomers,, etc,, and none of em compare to the Elixir's. I wouldnt bullshit anyone.I recently about a month ago bought some cheap set of strings for a few bucks and they corroded in a wek. i went this past saturday to get some Elixar's. I have em on my strat now and there is not one spec of corrode on em and i am to lazy to wipe strings down and with the coating the Elixar's have,, I am truly impressed with the quality of em. I know you guys are gonna say 9 dollars is too much,, but trust me,, you will save money buy putting a set of the Elixar's on cause the life span on em is a hell of alot longer than the rest of the brands.