Brain block tetromino [TBB-01]

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

■ Product description ■ Tenyo will completely renew the best-selling boxed puzzle "Bra Puzzle".
The new name is "Brain Block". It is a puzzle in which a beautiful transparent piece composed of 3 colors of gradation is put into a case.
Although there are hundreds to tens of thousands of answers, it is extremely difficult to even reach that one pattern.
You can forget your time and get absorbed in stretching the part of your brain that you don't usually use.
[Product Details]
Difficulty : 1 (783 pieces)
Target age : 6 years old or older
* The release date has been changed.