This lure's Free bead mass transfer system is designed for maximum distance and accuracy. The single bead creates a low pitch rattle. The lip was designed to deflect off cover to trigger reaction strikes. Sebile created it's body shape unlike other fat bodied baits to optimize aerodynamics during casting. The gap between the lip and body allows a faster response at first retrieval. The MR version of the Crankster features glass beads in the head to incorporate a high pitch rattle as well.