Board Thread:Theories and Speculation/@comment-25645405-20150719020101/@comment-4080775-20151130161425

i find it hard to believe one the the imperial relics was physical and the others ethereal. I believe all of them are physical, but through use of chakra, two of them were equipped to Itachi's Susanoo and had the appearance of chakra constructs with the same abilities as the weapons themselves.