Aero Slicers

The Aero Slicers were tools used by Toa Metru Matau. When he put them on his back, he could use them as wings. He could also wield them as swords by which he could channel his power over air elemental energy. They were mutated into the Fang Blades when Matau turned into a Toa Hordika, but were changed back. It is unknown what happened to them when Matau went to Mata Nui.

Trivia

 * In Bionicle Heroes, Aero Slicers are the second weapons Kongu uses. They are later upraged to the Laser Harpoon.