Ed Boysun - 1/23/2020 19:47

Yes, I think that's the ones. Not sure if they will be here tomorrow though. They started their journey in Orem, Utah and now they're in Oakland, CA. 
One look at the inside of the wheels tells me that lots of rocks find their way up there. 
Looking at the website that makes these things, it seems that they offer them for other makes too, so it's not just a Polaris problem.