< Topic >Consisting of little number of articles, being easily abolition possible, you use and you offer the rest room for the pet where the selfishness is good.SolutionsAs for the median outer part tucking section, when the independent time being moved, the inserting piece which was formed to the Tip, the Bite looks at the destal of the rest room sheet which was spread on the surface of the plane surface section and is packed, being inserted by the inserting hole which is in the corresponding physical relationship, makes that it makes the median outer part tucking section the plane surface section engage possible. This engagement pulls the inserting piece from the particular inserting hole and is released by the fact that it can make a foolish mistake.< Choice figure >Drawing 1【課題】少ない部品点数からなって、容易に廃棄可能で、使い勝手のよいペット用トイレを提供する。【解決手段】中央外側折り込み部は、独立回動されたときに、先端に形成された差し込み片が、平面部の表面に敷かれたトイレシートの端部を噛み込み、対応位置関係にある差し込み孔に差し込まれて中央外側折り込み部を平面部に係合させることを可能にする。この係合は、差し込み片を当該差し込み孔から引き抜かれることで解除される。【選択図】図1