Puzzle Meiji Milk Chocolate Puzzle Pure (sweet) "Meiji Puzzle Series"

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

Product explanation ■ This is a puzzle that looks exactly like Meiji's chocolate bar. Can I put 12 pieces of 5 squares back into the case?
Each piece is a collection of 5 squares. The shape of the piece is called pentomino.
There are 2339 solutions to this chocolate puzzle. You can also enjoy imagining various shapes by combining 12 pieces of chocolate.
By the way, Meiji milk chocolate is known as "milch".
[Product Details]

12 pieces of chocolate pieces, 1 case
Difficulty : Pure (sweet)
Target age : 6 years old or older.