Studded cooper weathermasters. Had to put them on myself. twanged 2 tpms sensors. saved nothing by installing and balancing myself. (am mostly capable but dislike tire machines) But I wanted them on right now. will have to go to a tire shop to get the sensors done, had to bust them out and put in regular valve stems. ( that makes a total of three of these I’ve busted, the ford one snapped, these didn’t even break, I just wasn’t careful enough and now they’re done. My last car had them factory deleted, it was an oddball. That said, I have cleats on my van and now I’m awesome.