I replaced the nut on my Fender Mini P with this nut, and the width is perfect for the neck. That said, I spent quite a while sanding it down to the right depth and height. I'd say it's a slight improvement over the nut the bass came with, but have yet to make up my mind about how much of an improvement it really is to the sound. It's cheap enough and not that difficult to do, but definitely not a drop-in-and-go kind of replacement on this specific model.