This is a great little kit! I had to take mine out a few years ago for a job, but my new job doesn't care. I guess at some point I tossed out my old collection (insert crying here), but this kit has been great to get me back up to 0. I had no idea what size my ears had shrunk down to, so this inexpensive kit was great for me to test and see where I was at. All my sizes seem to be correct as well.