COO is a specialized lure just below the surface of the water, which was developed to target the 10cm depth range. Although it swims like a sinker, it floats. Therefore, the sea bass looks up at the lure from below and recognizes it. The sea bass sees the COO, recognizes it as food, and comes to eat it. In order to increase that chance, the most important thing is to show it first. Drumstick, mullet, whitetail, halfbeak, and even sandfish. Experience a new world that only this size can open up.