Puzzle Brain Block Pentomino Square [TBB-04]

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

Product Description ■ Tenyo is completely revamping the bestselling boxed puzzle 「 bra puzzle 」.
The new name is 「 Brain Block 」. This is a puzzle with a beautiful transparent piece made of three color gradation in the case.
There are hundreds to tens of thousands of answers, but it is extremely difficult to come up with one pattern.
You can forget the time and get hooked on it. You can stretch the part of your brain that you don't usually use.
[Product Details]
Difficulty : 4 (16146 Ways)
Target age : 6 years old
* The release date has been changed.