This is a flat pouch with a cat pattern. The inside has a polka dot pattern. How about using it as a bankbook case, pen case, mask case, or a goshuincho (temple stamp book) case (only for goshuincho with a size of 16cm in height and 11cm in width)? The size is approximately 14cm in height and 21cm in width. A 20cm zipper is used. In the third photo, it is placed next to a smartphone for size comparison. Masks can also fit, with the vinyl part slightly folded (photo 4, the pen is 18.5cm long). *Mask not included Each item is carefully made, but it is handmade by an amateur (stitches and slight misalignments, etc.), so please understand this before purchasing. I am also selling on other apps, so I will delete the listing if it sells.