The design involves replacing or upgrading the waterproof plug at the tail end of the underwater camera (you also need 2 20x1.9mm O ring for waterproof) (similar to or equivalent to the WaterWolf fishing camera) and adding stabilizing wings to maintain stable positioning in the water. By adding weights on either side of the stabilizing wings, the camera can descend more quickly to the bottom after falling into the water. This design is intended for carp fishing or bottom fishing, and may also be suitable for lure fishing.