Puzzle Brain Trainer Jigsaw Puzzle Ondoku / Toson Shimazaki Edition [NJ-002]

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

Product Description ■ Scientifically proven jigsaw puzzle that trains brain power!
It is supervised by Professor Kawashima of Tohoku University who is also the author of "Adult's Calculation and Reading Aloud Drill".
[Product Details]

Training Jigsaw Puzzle / 15 pieces x 8 pieces, Training Book (Manual), Progress Chart
Size when completed : Approx. 10.5 cm x 15 cm