chigiriki
chigiriki is a chain weapon or weapon family.
Overview
Japanese flail weapon.
In detail
It is associated with Japan.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Chigiriki”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q2615967: chigiriki
Consult the source