Extra strong string to wind, for instance, into the depression around the middle joint. Dia.:0.75mm,length:300m. Material: Vinylon (artificial fiber)
Middle Joint Insert Tool A (with handle), ¥6655
Joint-Forming Tool-S, ¥8470
Mentori 3-rin (width:0.9mm), ¥14740
Celluloid Thick, ¥935