I ordered a set of Fender Pure Nickels. 7150ml. I found them on amazon for a great deal, especially considering I'm trying to try every string I can to see what I really like! I found them for 6.59$ No tax, and free 2 day shipping. I picked up the box, excited to put my new strings on. It feels funny... this feels like a rock in this box... Why did they send a a box.. when all they have to send is the paper envelope? Something isn't adding up here.. Well turns out, they sent me 6 sets! And I want to say they're the old formula 7150's?