iMESTOU Anti-Theft Lock Security Knob and Key Knob- 1PCS

Works great for securing ram mounts. I ordered 4. Definitely cheaper than replacing ram mounts.

Would buy again

If set up properly, is works. The washers must be used to put all the pressure on the center portion of the device so that when turning the outer portion it spins freely. However, even this can EASILY be defeated with a coin, as I did with a single quarter. Needs reworked to be worth purchasing.

I install this on my scooter with my GPS when traveling. I thought everything was working fine. Someone noticed it and asked how it worked. I showed the small special spanner used to lock it and said the outer ring won't work to remove it while trying to demonstrate it and as I turned the ring, I was able to remove it. I reinstalled it and it worked correctly. I have to verify it each time to make sure as sometimes it works and other times it doesn't. Once it works, it's good until I remove it. Just have to verify it each time prior to using after install.

Plastic seems “light” but it tightens well enough. I like it

Works on New DoubleTake Mirror with couple of small washers. I had to add a couple of small washers and it works great. I got a few black washers at the hardware store. I think these will make a good deterrent and they make me feel more comfortable knowing my mirrors will not just be easily walk away.

Useless, can be loosened by hand without the key. I'll have to buy a different brand.

I needed to use the bolt provided, original was standard thread and this part uses fine thread. My original item has 1 largish plastic washer and one smaller steel washer. I put those on in the same order (plastic washer, steel washer) and then installer the included larger steel washer. This assured that the inside of the 'locking mechanism' properly seated and secured the RAM arm and allowing the outer part to rotate freely. Once I got it all figured out, works like a champ.

Fenomenal.

Als Ersatzprodukt für RAM Mount lock ok

Perfect. Exactly what it says. Keeps me with a peace of mind

fait le job

I like the sturdyness and ease of use. Great value!