|Manga||Volume #39, Naruto Chapter #354|
|Anime||Naruto Shippūden Episode #121|
|Appears in||Anime, Manga|
This tool was given to Naruto, Sasuke, and Sakura to sneak into Nekomata's Cat Fortress. These unique tools allow the user to interact with other cats as if they were cats themselves but if it were to fall off, they would once again become distinguishable from cats.