User blog comment:Xilinoc/Ch. 555 - THE HERO/@comment-9096222-20131102093649/@comment-11051098-20131106134504

I revisited some older chapters, and I see the similar thing around his waist, and I've noticed the collar-looking thing around his neck. Seems he has a bunch of those things on him. If he does create portals (I say "if" as nothing's confirmed yet), those things might do the adjustments, but I doubt it. I think they're just decorations that he wear.

If he had to adjust the portals with those things, it would make the whole process slower than doing it in his mind, so I see no use in it.