If you're into fast guitar playing, alternate, sweep picking or fast metal rythm these are the picks for you. They point is sharp enough to make fast picking easier, the small size makes it easier to handle and harder to drop and it remains sharp for about a week of intensive playing. The sound they make on acoustic guitar is not really that good, they create a lot of low end and really kill the brightness of the strings, and it's also hard to do funky-style fast strumming with it, but it's a nice tool every electric guitarist should have in his arsenal.