I put them on my trailer and they look good. However, they were mostly welded to the threads because salt got into the threads. I had to use pliers to take them off and it was still hard and needless to say it messed them up. I bought another set and put a non stick coating on the threads and screwed them all the way down then cycled them off and on until it stopped making sure the threads were covered and it should work. TO UPDATE. Applying some anti-stick (enough to lightly coat the filaments) worked very well. If you don't, they will be pulled apart and actually welded to the valve stem. That's the only reason I'm giving it 4 stars.