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Concentration

Concentration is about focusing all your attention on one object.
Distractions are the worst enemies of concentration.
A game or toy that requires attention and observation exercises concentration.
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Jeu d'échecs d'auto-apprentissage - Right moves - Playwell - Échiquier pleine grandeur - Chaque pièce du jeu montre les mouvements possibles - Devant de la boîte
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Self-study chess game - Right moves
$39.95