Craftsman Hou Quanchen shows how to reassemble a Kong Ming Lock at home in Shahe City, north China's Hebei Province, July 30, 2023.
Hou, 79, has devoted himself for six decades to making Kong Ming Lock, a traditional Chinese folk educational toy. In his leisure hours, Hou also promotes the intellectual toy among school students. (Xinhua/Mu Yu)
Craftsman Hou Quanchen displays a Kong Ming Lock he has made in Shahe City, north China's Hebei Province, July 30, 2023.
Hou, 79, has devoted himself for six decades to making Kong Ming Lock, a traditional Chinese folk educational toy. In his leisure hours, Hou also promotes the intellectual toy among school students. (Xinhua/Mu Yu)
Craftsman Hou Quanchen makes a Kong Ming Lock at a workshop in Shahe City, north China's Hebei Province, July 30, 2023.
Hou, 79, has devoted himself for six decades to making Kong Ming Lock, a traditional Chinese folk educational toy. In his leisure hours, Hou also promotes the intellectual toy among school students. (Xinhua/Mu Yu)
Craftsman Hou Quanchen makes a Kong Ming Lock at a workshop in Shahe City, north China's Hebei Province, July 30, 2023.
Hou, 79, has devoted himself for six decades to making Kong Ming Lock, a traditional Chinese folk educational toy. In his leisure hours, Hou also promotes the intellectual toy among school students. (Xinhua/Mu Yu)
This photo taken on July 30, 2023 shows the tools that craftsman Hou Quanchen uses to make Kong Ming Lock in Shahe City, north China's Hebei Province.
Hou, 79, has devoted himself for six decades to making Kong Ming Lock, a traditional Chinese folk educational toy. In his leisure hours, Hou also promotes the intellectual toy among school students. (Xinhua/Mu Yu)
Craftsman Hou Quanchen makes a Kong Ming Lock at a workshop in Shahe City, north China's Hebei Province, July 30, 2023.
Hou, 79, has devoted himself for six decades to making Kong Ming Lock, a traditional Chinese folk educational toy. In his leisure hours, Hou also promotes the intellectual toy among school students. (Xinhua/Mu Yu)
Craftsman Hou Quanchen puts away the Kong Ming Locks he has made in Shahe City, north China's Hebei Province, July 30, 2023.
Hou, 79, has devoted himself for six decades to making Kong Ming Lock, a traditional Chinese folk educational toy. In his leisure hours, Hou also promotes the intellectual toy among school students. (Xinhua/Mu Yu)
Craftsman Hou Quanchen introduces a Kong Ming Lock he has made in Shahe City, north China's Hebei Province, July 30, 2023.
Hou, 79, has devoted himself for six decades to making Kong Ming Lock, a traditional Chinese folk educational toy. In his leisure hours, Hou also promotes the intellectual toy among school students. (Xinhua/Mu Yu)
Craftsman Hou Quanchen makes a Kong Ming Lock at a workshop in Shahe City, north China's Hebei Province, July 30, 2023.
Hou, 79, has devoted himself for six decades to making Kong Ming Lock, a traditional Chinese folk educational toy. In his leisure hours, Hou also promotes the intellectual toy among school students. (Xinhua/Mu Yu)
Craftsman Hou Quanchen makes a Kong Ming Lock at a workshop in Shahe City, north China's Hebei Province, July 30, 2023.
Hou, 79, has devoted himself for six decades to making Kong Ming Lock, a traditional Chinese folk educational toy. In his leisure hours, Hou also promotes the intellectual toy among school students. (Xinhua/Mu Yu)
Craftsman Hou Quanchen and his wife discuss the technique of making Kong Ming Lock in Shahe City, north China's Hebei Province, July 30, 2023.
Hou, 79, has devoted himself for six decades to making Kong Ming Lock, a traditional Chinese folk educational toy. In his leisure hours, Hou also promotes the intellectual toy among school students. (Xinhua/Mu Yu)