All Ernie Ball strings are precision manufactured to the highest standards and most exacting specs to assure consistency, optimum performance, and long life.
I usually use brands that cost more - I decided to try these out on my 12 string because I like to try out different strings and they were cheap. As I was putting them on, I immediately noticed that the strings needed to be stretched out a lot more than the brands I usually use. As I was tuning them up, the small G string snapped. Later one of the high E strings snapped. I was afraid to keep tightening the strings to get them up to pitch because they did not stretch out like normal ones. When I finally got ten strings tuned, they kept going flat. Eventually they stretched out & actually sounded nice (with ten strings on a 12 string guitar). I ended up taking them off the next day and throwing them out & putting a new pack of nicer strings on. I've been changing guitar strings for 32 years so I know how to do this - I've worked with many different brands & types of strings (80/20, phosphor bronze, silk & steel, coated, etc). I say that to emphasize that I'm not a novice at putting strings on a guitar. Maybe they'll work for you but I won't try them again.
Preferred light gauge strings on 12 string acoustic guitar for finger picking ease. Tone may be on the bright side compared to phosphor bronze strings but gauge is important.