Tonbogiri

Tonbogiri (lit. "Dragonfly Cutting Spear") Tonbogiri is a melee type zanpakuto.

Appearance
Tonbogiri looks like a regular katana when sealed. It has a dark green hilt and sheath. Its guard is in the shape of a rounded asterisk which resemble the body and wings of a dragonfly.

Shikai
Tonbogiri's shikai is released by the phrase "Anata no Tsubasa no Hirogari" (あなたの羽を広げ lit. "Spread Your Wings"). When released, Tonbogiri changes from a sword to a long spear with an open bladed circle that extends into a blade.

Abilities
Tonbogiri's only ability is its power to cut through almost any object or material. Even touching the flat side of the blade will result in getting cut.

Bankai
Currently, Tonbogiri does not have a bankai.

Trivia
Tonbogiri is the name of one of the three legendary Japanese spears along with Nihongo and Otegine.