Chinese interlocking puzzle Keychain

1.三軸組合的積木，此類結構在中國民間建築、生活應用上甚早，委名為魯班或孔明所發明的玩具。2.三軸可搭配不同的顏色，色彩更加豐富。3.其中一軸可外加圈環，做成鑰匙圈。 1. Three-axis building blocks. This type of structure was used in Chinese folk architecture and daily life very early. It was named a toy invented by Lu Ban or Kong Ming.2. The three axes can be matched with different colors, making the colors richer.3. A ring can be added to one of the shafts to make a key ring.