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Seven-piece wood puzzle is an ancient Chinese tradition.Intelligent toysAs the name suggests, it is composed of seven boards. These seven boards can be assembled into a variety of shapes (over 1600), such as triangles, ParallelogramIrregular polygons, players can also assemble them into various characters, images, animals, bridges, houses, towers, and so on, or some Chinese and English letters.

The Chinese puzzle, also known as the Suan-pan or the Seven-piece Puzzle, is an invention of ancient Chinese laborers. Its history can be traced back to at least the first century BC, and it was essentially standardized by the Ming Dynasty. It spread widely among the Chinese people during the Ming and Qing dynasties. In the Qing Dynasty, Lu Yitian mentioned it.《冷庐杂识》In volume one, it is written: There is a recent seven-intrigue diagram, with a pattern of five and a number of seven. Its variety of patterns is as many as over a thousand. It is a tool for depicting objects and shapes, which can be transformed at will. It is a game that can help relieve boredom and break the silence, so the common people all like to make it. In the 18th century, the seven-intrigue board spread to foreign countries.Li ZeshuTo call it one of the oldest amusements in the East, a copy of the 'New Book of Suan-zhou' is treasured in the library of Cambridge University in Britain.

Model	Case Quantity (CM)	Size (CM)
Large	120	20*20*0.8
Medium	200	14.5*14.5*0.6
Trumpet	500	11.5*11.5*0.4