By adjusting the amount of water biting with the parallel posture by weight balance and the plate width, both moderately light pulling resistance and high-speed pitch flushing are realized. The shallow area of 17g is 1 to 1.5m and 25g is 1.5 to 2m, which enables the retrieval at the speed at which flatfish are most likely to bite. The original three-piece weight design provided on the head and abdomen reduces troubles caused by rotation and hooks during casting, which tend to be iron plate vibrations, and pursues a comfortable feel. It is a vibration that is easy to control even when retrieving or lifting.