Granted my picture of the knob isn't the best but it isn't way too hard to see. Look at the bottom left of the bat. See the little hole in both bats. If you look in the bottom right you can see a pretty good ding in both bats in the exact same spot. The black dots all around the knob match up prefectly, but those are pretty tough to see in my picture and much easier to see in person. Look really close, because I didn't see it at first either.