There's no end of "Wilkinson" labeled hardware being manufactured in China without any real licensing or quality control. As the ad specifically references MIM/Squier, keep in mind that the 6 holes drilled for the std bridge in those models DO NOT line up with a std. Fender or Warmoth set of holes.
That may not make much difference as you have to ream out the outer holes to get this installed, but you could have a problem depending on how your current holes are spaced and will still have at a minimum the 4 holes to fill/clean up.
Beware of the fact that they do not offer a downloadable diagram of mechanical specs for the unit...