1) Chain weapon of Japan 2) Samurai chain weapon 
The `chain-scythe` is a traditional Japanese weapon that consists of a kama (the Japanese equivalent of a scythe) on a metal chain (kusari) with a heavy iron weight (fundo) at the end. The kusarigama is said to have developed during the Muromachi period. The art of handling the kusarigama is called kusarigamajutsu. == Methods of use == Attacking.....
Japanese Version of Kama Reaping Sickle with Chain