I need these for my truck to replace old ones that have been leaking. I have TPMS sensors on their end so I was worried they wouldn't work. However, they have performed great and have a strong seal with no air leakage. They have a pin in the middle that when pressed onto its end pushes onto another valve stem pin so you can check the pressure or add some more air. The only negative I have is that it looks like 1 of 4 has been used (see photo). I only needed one so it wasn't a big deal for me.