I agree with Travis. They're not exactly the best produced looking lure around. They can't even copy a lure properly, I'm not sure the wiring is great and I wouldn't trust the components like the swivels. At the prices of these lures, stick with lures like Herus. In fact, I'd recommend the R2S Dumbbell or Halco Roosta over these.
They have a couple of lures which I am certain noone has ever tested as they're just ridiculous.