They were sold by a seller on Form 1 Suppressor Boards… looking for it, seems the forum was removed by the forum host.
Checked the size chart and note that the seller included with storage/use tips… no name or contact info. I also checked a few of the payment apps that I’ve used, and cannot find anything that has something related to it.
Sad, being the guy really did a nice job. Confirmed straightness, beveled the edges and added color so they are identified easily. The rods were awesome quality, especially for the price.