4PCS Tire Valve Stem Caps, Anti-Theft Auto Wheel Tyre Air Caps Cover with Rubber Seal, Corrosion Resistant Leakproof Stem Covers Car Accessories for Trucks, SUVs, Bikes (Style 2, Colorful)

Two of my car’s wheel valve stem covers went missing, so I decided to upgrade all four. These caps are stylish and look good on my wheels. I used the tool to tighten them to a point where they are not likely to come lose or mysteriously disappear. – I keep the tool in my glove compartment, so it is always with the car.Positives: 1. Attractive and Shiny 2. Install: Easily threads on the valve stem, and the included small hex wrench works as a nice key to tighten the capsPhotos included: 1. Valve Stem Caps and tightening tool 2. Installed cap on metal valve stem 3. Tightening tool inserted in stem caps key slot

This review is for a four pack of tire valve stem caps. They claim to be anti-theft, so they come with an allen wrench that fits into the end and can be used to tighten them or remove them. I guess thieves don't have pliers or strong fingers where these are designed to be used? I put them on and off without tools and they work just fine.Every valve stem cap keeps out dirt- these are no different in that regard. For all intents and purposes they appear impermeable to typical road debris. That's good because I demand that as a minimum from all my valve stem caps.These caps have a rubber seal on the inside. For those rare occasions your valve core leaks and you are unable to put in a new one these caps will allow your tire to hold air, at least long enough to drive somewhere and get a replacement core.These caps are metal, not the more traditional (and more pliable) plastic. The drawback to a metal cap is they are a little more difficult to properly thread onto your valve stem. You do not want to get this wrong since a mistake at this point will damage the threads on your valve stem. If you cross thread a plastic cap you throw the cap away, no damage has been done to the stem. If you cross thread a metal cap you'll be sourcing a thread repair die or replacing the stem and maybe your TPMS sensor while you're in there anyway.They do look cute. If accessorizing your ride is part of your identity then these caps might form a crucial component of your automotive personality.If you have a very tiny curved face these might make a useful mirror, the finish is quite shiny.I like them.