User blog comment:Martialmaniac/Kurapika's index chain/@comment-25814498-20151028013737/@comment-5780397-20151103014315

Honestly, I have no idea. I thought it would be pretty similar to the index chain in appearance. If I had to pick, I'd say the first one, because he really didn't need to use it against Uvogin, since he wanted to test the strength of Chain Jail, and aside from him, he never fought anyone worth killing.