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Black / Yellow
traditional halogen)
Compacité 15 cm et alimentation USB universelle
The choice depends on personal taste and interior decor
casse tete mathematique addition des anneaux pour atteindre 50 Maroquinerie Personnalisable Black / YellowThe wooden math puzzle 5 rotating rings, diameter 12. 8 cm, natural wood. Objective: align the numbers in each column to obtain a sum of 50. Over 65,000 possible combinations, only one is correct. An educational tool and intellectual challenge for ages 8 and up. Objective: sum 50 per column Each column of numbers must total exactly 50 seemingly simple, but with 65,000 possible combinations and only one correct solution. 5 independent rotating rings
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