ITEM NAME:Boxes Red Blue Yellow Sponge Ball Magic Trick Black Box Mystery O8Q5 C7S4 Description: Two different color boxes can change their size and interchange the size. After each swap, a sponge ball will be changed. Until the end of the show, you can become a big sponge ball or your favorite ending! Product Name: Magic Treasure Box Product style: As shown Box size: 4.5 x 3.7 x 4.1 CM Sponge size: 3.5 CM The package includes: 2x Magic box 3x Sponge magic ball.Two different color boxes can change their size and interchange the size. After each swap, a sponge ball will be changed. 3x Sponge magic ball. Sponge size: 3.5 CM. 2x Magic box.