Basically, a flapper that has the hooks clipped down to make the rig more aerodynamic for casting. Constructed the same way except for the use of cascade swivels in place of the lower normal swivels. A hook length clips onto the cascade swivel below it. The lowest hook clips into either the built in clip of an impact lead (as illustrated), or an impact shield, whatever your preference is. I have made the hook lengths at 12 inches but they can be longer or shorter – just make sure that the hook length does not hit the hook length above it or below it, so adjust the distance between the trapped swivels accordingly.