This is for an empty box for the short-lived Hello Kitty Dream Cakes, produced by Lotte under license from Sanrio. Dated 2001. Box is flattened (but could easily be reassembled). Flattened, it measures 13" x 6 3/8" Assembled, it is 9 1/4" x 4 3/8" x 2". Dated 2001. Very hard to find!