A:
The device works well but has some drawbacks:
The bait fish changes very easily from the hook. The bait is attached to the hook's back curve by a loop on the eye.
The hook uses a tiny rubber band to make it weedless.
The kit is not preassembied but it is very simple and the possible configurations are very numerous.
Cons - If the bass takes the plastic bait fish, but not the hook, the attachment point is not a strong plastic and you will loose the eye and plastic bait fish.