Wanted to fix a flat on my VW Passat 04 only to find that one of my lock nuts was a 'locked' nut to deter theft. I've never heard of anything like this and couldn't find the key in any car dealership. The VW dealer tried to tell me they no longer make keys for them since they stopped putting locknuts on their cars and they wanted to charge me hundreds just to take them off to fix my apartment without tow the hundreds for the pay count before you bring it to them. Luckily I looked for a key here, counted the spokes in the nut and found this. And boom! The tire came off easily. I'm so glad I found this little thing, it saved me a ton of money!