FT/FS: D'addario EXL 170sl-Nickel Wound 45-100 [new, uncut, in package] These are extra long scale, which is what you need if you string a 34" through the body. (I don't) I accidentally bought these away from home, so I can't return them. I'd love to trade for a set of long scale strings. If you wanna buy, make an offer. I paid $24.