User blog comment:Soulreaper1234/What's up with Ichigo and his BANKAI, is it in constant release?/@comment-1961713-20100915154218/@comment-44061-20100915155937

A constant release means that there is no seal on it, thus making it the size of a typical katanta, nodocahi or wazikachi or similar variation. Kenpachi states he has no seal on it. Shikai is a zanpakuto's true form which Kenpachi further states of his zanpakuto. In a later discussion its affirmed that Ichigo's is the same, with no seal. Will he ever seal it not likely does it matter if he does or not nope.