User blog comment:Xilinoc/Ch. 556 - The Wolfsbane/@comment-5695542-20131106184407/@comment-3250274-20131106230837

From the Wikia: Shikai: The command for its Shikai is "Snap" (弾け, hajike). When its Shikai is activated, Tobiume's blade, straightening, produces two jutte-like prongs (three in the anime) along its length at various intervals.[64][65]