Extra strong string to wind, for instance, into the depression around the middle joint. Dia.:0.75mm,length:300m. Material: Vinylon (artificial fiber)
Wooden Joint Section Insert L, ¥1100
Cherry Tree Bark, ¥1320
Joint-Forming Tool-S, ¥8470
Mentori 2-rin (width:0.7mm), ¥14850