Stuffed Collection is a stand alone series from Megahouse, it's concerning plush toys from a lot of different series and Manga, but the major part of this remains from One Piece. The Stuffed Collection feat. P.O.P. is a sub-class from it and it contains scaled plush figures that are exclusively created to be part of the P.O.P series and in the same time keep the name of their first classifications, so it's called: "Stuffed Collection feat. P.O.P.".