Best acoustic guitar pick ever! Lots of volume and character. Really drives the top of an acoustic guitar. 2.75mm in the middle with a long, sharp bevel to create lots of highs and lows. Also great on electric guitar. Grips your fingers so you won't have to keep adjusting this pick while playing. Which is great, because if you're thinking about your pick while you're playing, you are spending precious energy that should be the driving force behind your art and music.