The position of the center of gravity of the dart can be seen at a glance. Freely choose your favorite settings. Adjust the position with the adjuster so that the lower memory is in the center. If the barrel is placed in the center of gravity (CoG) and the memory becomes the center, that is the center of gravity. CoG can be used not only with the barrel alone, but also with the shaft, flight, and tip (point) set, so you can check the center of gravity after setting at a glance. It is possible to check the position of the center of gravity by measuring, not by feeling, so it is easy to change the shaft, flight, and tip (point) according to the way you throw and fly. By checking the balance after setting with CoG, which was not conscious until now, we will provide new discoveries.How To Use:Use the adjuster on the back of the rail to adjust it so that it is level. Place the darts and adjust the position so that the memory is horizontalSupports up to a maximum diameter of 8.5 mm