I connected a Super Rotating Bead M to an Ika Hook with leader line. I passed the main line through and secured the top and bottom with figure-eight knots, using it for Marui-Ika (squid) direct-tie fishing. Please note that this is handmade, so there may be slight variations in the length of the leader line. Although it has not been used for fishing, it has been stored, so please understand that it is a used item.