This article, Barrier Tag, contains content taken directly from our mother site. All credit of such content is reserved the original authors over at Narutopedia, the original article can be read here: "Barrier Tag".
These tags are special pieces of paper inscribed with the kanji to tie or bind (結, ketsu), which is short for the word "barrier" (結界, kekkai). The tag most likely forms a barrier to protect whatever is located within it.[1] When this tag was used, a shinobi was stationed above it which indicates that the technique might require maintaining.
Trivia[]
There were most likely several other tags and shinobi stationed around the area so as to complete the barrier's formation.
