Need correct idler tires for GE 3-5259a Blockbuster

[caution]

Hold up, the previously mentioned idler tires are not perfect they are slightly too wide. I suppose you could grind them down to get them to work. However, I took a chance and ordered these: https://www.ebay.com/itm/334895960546 and the right size was in the mix and no grinding necessary - perfect! I did have to wait about two weeks for them but worth it. My two Blockbusters cassettes are running just need azimuth and speed adjustment. I can gage speed but azimuth, forget about it. Peace to everyone!

Yeah, I was kind of confused when you initially said they were "perfect" because the dimensions on the auction were not the same as my measurements. The new ones you pointed at look more or less to be an exact match.

It's kind of a shame because the polymer material used on those first ones looks superior to plain old rubber.