Reben,all of my black inserts seem to be wide on one side and narrow on the other.I do know this.and I learned it from Gene is the black insert $1.00 comes with two different size hot stamped inlays,one is much larger than the other.Compare the one on the right,notice the size of the O's and the size of the word club compare to the chip next to it on the left,hope this helps.