The square bill crank "MACBETH" is designed for full-scale cover cranking. For quick posture recovery after avoiding obstacles, which is a prerequisite for cover cranks, a fixed weight with a low center of gravity integrated into the front hook eye and a slashed-edge lip with thinner side parts are adopted. The front hook is less likely to interfere with the body, and noise during retrieve has been reduced. We also examined the synergistic effect of the paint and rear body shape to effectively create a flickering effect during action. We are confident that we have put a lot of attention to detail into this seemingly ordinary crankbait.