They are probably hit or miss on quality, and there is zero warranty so buying is a risk. I liked them the first few months. the chrome caps were washed and waxed just like the rest of the PVD chrome on the truck, they were the only ones with issues though. It was real fun trying to push the mirror back out while moving, wife really enjoyed that lol, ended up having to drive with the passenger side retracted which is the one i needed most and defeated the whole purpose of tow mirrors. Plus people always made the "hey, one of your mirrors isn't out" comment assuming it wasn't intentional.Mine are over 2 years old and still fantastic. They don't rattle or wiggle in the wind or anything like that, and the black plastic still looks great (though I do keep a product on them).
2016 2.7 4x4 screw