Extra strong string to wind, for instance, into the depression around the middle joint. Dia.:0.75mm,length:300m. Material: Vinylon (artificial fiber)
Mentori 2-rin (width:0.7mm), ¥14850
Cherry Tree Bark, ¥1320
2-rin rattan (width:0.6mm), ¥12650
Joint Forming Tool-L, ¥8470
Celluloid Thin, ¥715