World first! A square board transforms into a three-dimensional cube!
You present a flat card with six! different sides (edge length 15 cm) . - Each side actually has a different number on it!!! Like on a dice - from 1 to 6.
Then throw the card into the air.
There she transforms automatically into a three-dimensional giant cube! (15 x 15 x 15 cm, made of plastic)
