As the old saying goes, "A mortise and tenon is strong for many years". Luban lock does not need to be nailed and glued but it can make things firmly formed. This beauty gives a sense of natural texture,that the various components work together in harmony and coexistence. In this lesson, we will mainly learn Luban lock from three parts, indluding the invention of the Luban lock, the explanaiton of the structure of Luban lock, and the demonstration of disassembling of Luban lock. We hope that through this lesson,you can experience the wisdom of mortise and tenon in disassembling the Luban lock, and feel the charm of disassembly.