Made of the special hard high foaming resin.
I answer to a bigfish with the penetration wire specification 1.8 mm, too.
A long cast follows one as a pull and sets the balance it's also difficult for an error action to occur to which by a wave as a possible original body.
Including the green which are yellowtail and HIRAMASA, etc. including a dorado. Popper who also gives a good catch by yellowfin tuna.
SingleHook & TrebleHook Recommendation @2〜5g
※ When I adjust slightly by a split ring according to the sea conditions by the tid of tide and the flow, it connects with catch UP.