Thank you for the information. I don't think your shoe has worn down, it looks to be simply a 15/16", which we do not carry. We are, however, currently researching a possible replacement, and will have more information soon.
If you would like to try the 1" shoe, we can assemble that for you, as well. Please let us know.
If your research does not come up with 15/16, then lets go with the 1"