Thought the cube is actually the new Amiibo Sammelfiguren of Nintendo, but you can use the course as you like. The material is made of soft plastic, folded accordingly the Cube also comes on. Unfortunately, he has not come to pass after days in its intended character that existing at the sides by folding creases you have probably figured out iron?
The product images on the actual size belie. An edge length of 20 x 20 x 20 centimeters is not really impressive. I understand that manufacturers need to pay royalties to Nintendo and still want to earn a bit, but all in all, nearly 25, - folded for a piece of soft plastic then rather proud.
Edit 12/08/2014:
And hey presto, already costs the dice depending on the provider now between 21, - to 35, - ... apparently because some want to get rich with might :(
Who wants to have the cube so, should wait a day or two, because there are providers through Amazon every now and again appears that sell the cube at a reasonable price.