Extra strong string to wind, for instance, into the depression around the middle joint. Dia.:0.75mm,length:300m. Material: Vinylon (artificial fiber)
9-Blade Saw for Joint Making, ¥3850
4-rin rattan Corner-cut (width:1.2mm), ¥8250
Joint-Forming Tool SET, ¥23650
Wooden Joint Section Insert M, ¥990