A clevis body adapted to support one or a pair of spinner blades in combination on a filamentary support to produce a periodic cyclical counter rotation of the clevis and spinner blade assemblies when directed through water. A bore at a longitudinal core receives the filamentary support. At least one cross arm laterally radiates from the core and mounts to at least one spinner blade support arm that extends parallel to the core. One or a pair of spinner blades mounted to the longitudinal support arm(s) periodically and cyclically counter rotate the assembly about the filamentary support. The hydrodynamic movement of the clevis body and attached blades particularly induce the assembly to cyclically and periodically change back and forth between clockwise and counter-clockwise rotation directions.
