Board Thread:Theories and Speculation/@comment-30168130-20170115054258/@comment-1512913-20170115114635

I believe DB4 clarifies that black rods are Rinnegan power. So far so good... TSB are SPS power and they can be shaped into other forms like rods. So far so good... The only mysteries are Demonic Statue black rods and Madara's seemingly non-Rinnegan related black rods.

I would think that the will manifestation stuff and Rinnegan black rods are related and Madara still could use them even after the eyes have been removed, just like in case of Susanoo... But why would the black rods come out of Obito's White Zetsu/Hashirama parts at least on two occasions I have no idea. So because of those instances, those will manifested black rods seem to be unrelated to the Rinnegan's. Then Demonic Statue... Technically it's weakened Ten-Tails which is God Tree and Kaguya merged and Kaguya has the Rinne Sharingan, so Demonic Statue black rods could perhaps, maybe, possibly be Rinnegan's black rods. But then again, Kaguya as well could use will stuff like Madara, so it could be the second kind.