10 metal puzzles - Noèse Collection

Will you be able to untangle these ten small Chinese metal puzzles?
The metal puzzles of Noèse Collection inspires you to work your sense of logic, your critical sense, and your visuospatial abilities.
The three levels of difficulty allow you to appreciate your progress.
Play alone to occupy yourself during rainy days or long car journeys.
Play as a team to work your sense of cooperation.
Compete during family nights or with friends.
Noesis n.f. (Gr. Noêsis, intelligence): The act of thinking
Age: 8 years old

Available in three different sets of ten metal puzzles of a similar level of difficuly.