I had Ernie Balls on my bass before which went dull in a week. These things seem to last forever and they have such a nasty (good nasty) tone. They made my 12 year old $180 new Ibanez sound like a brand new Spector or Warwick bass! They are really bright and clear, grunt in the low and, and are awesome for pick playing, finger picking, or slap and pop. They're also really easy to play on, and are really free flowing and bendable. Best bass strings ever. Whether you own a bass or not, you need to get a pack of these strings! It's a real shame they aren't as popular as they should be.