I've been using these to protect a popup camper that I park at my girlfriend's house in Albuquerque. The place is super risky, as she had her previous popup stolen from her driveway. Kinda her fault as all she was using was a padlock to protect it. I'm not even a thief and I could remove a padlock with an angle grinder in 10-30 seconds and be outta there in less than a minute... I protect my popup with these boots, a hitch lock and a cover. Have fun trying to remove those three things thieves!These boots are substantially heftier than a padlock and a good delay mechanism. To safely remove them I'd think it'd take a thief probably 5 minutes with surgical precision using an angle grinder. You couldn't resort to being violent with the boots, say hitting them with a sledge because they'd impale the tires with their spikes, likely resulting in the tire's rupture.So I'm not sure why other people have so many issues setting these up as I found them to be rather trivial. Do the initial sizing and everything for your tire and then basically close everything down. It works and it's straight forward. I can set them up and tear them down in about 30 seconds.There are two things I primarily don't like about the design:1. The keys are not the same. They are sold as a set, the keys should be the same in my opinion.2. The gasket on the round lug shield is not glued on. It's easy to temporarily lose the gasket if the covers are shifting around inside the camper as you tow it. I thought I lost one of the gaskets for a while.Would buy again.-CR
Cliftonious 
