This is for an empty box for the Hello Kitty Dream Cakes, which were produced for a very short amount of time in 2001 by Lotte under license from Sanrio.  Box has been flattened for years, and measures 13" x 6 1/4".  Flaps have some light creasing.  Backside has a little dirt on Hello Kitty's face, which will likely clean off. Very scarce!