YGZN 9 Pi?ces 3D Puzzle Casse-t?te en Bois - Classique KongMing Luban Lock Jeu Jigsaw Jouet ?ducatif Cadeau-Jouets pour des Enfants et des Adolescents (Wooden Puzzles 9Set)
Features:
3D wooden puzzles, also known as Luban locks or Kongming locks, are based on the principles of ancient Chinese architecture and later furniture making. --Puzzle components are assembled by hidden joints. They hold together without the use of glue or nails, so it's easy to take them apart and put them back together.
The sticks cross each other, but they also interlock so they stay together without falling apart. Puzzles come in different forms with different internal structures. Seemingly simple, it contains many mysteries that require a great deal of patience and understanding of spatial relationships to piece together.
WARNING: These toys contain small parts and are not suitable for children under 3 years of age to swallow or choke.
