Most of the steering wheel locks we researched had the same design problems: they could be defeated with a well-placed kick, a sharp hacksaw blade, or an experienced lockpicker. The Disklok was the only car steering wheel lock with a design that withstood these common auto theft techniques.
Its steel shell has no obvious weak points that say "Cut here!" and its lock is so resistant to picking that even Disklok owners report having to do some key wiggling to get it to unlock (which is actually an intentional safety feature). Its weight and size make it less convenient to carry with you than some of the other locks we studied, but it outperforms the competition when it comes to security. If you want a lock that's more than just a deterrent and gives you real car theft protection, Disklok is the clear choice.