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Kumon Jigsaw Puzzle Educational 3 sets, Step 3, 6 years old and up ～.

Kumon Jigsaw Puzzle 3 sets （ 24, 35 ， 48 pieces ）
"Amazing Cars"

I got addicted to working on them by speeding up step by step.
I bought it when I was studying at Kumon in Japan （ for about 3000 yen ） and he enjoyed doing time trials and other things he learned there.
He got hooked on it and bought many more after that.

6 years old and up ～

From the back of the box ＜ Benefits of Kumon Jigsaw Puzzles ＞
Helps develop concentration and work skills that lead to learning
Gives a sense of achievement and self-affirmation
Improves hand-eye coordination
Increases the level of manual dexterity https://shop.kumonshuppan.com/view/category/ct333