Kong Ming Lock in Gift Box for Intelligence Development (Ten Units) Kong Ming Lock, also known as Eight Diagrams Lock, is a kind of adult intelligence assembling. It is said that the Kong Ming Lock was invented by Kong Ming who lived in the three Kingdoms, and it is very easy to install but difficult to disassemble. Kong Ming Lock is widely spread in the folk for the young and old to relax their body, develop their brain and benefit their fingers. Therefore, if you want to enjoy a more interesting life, Kong Ming Lock is a good choice. Features: Help students to cultivate attention, increase patience, build confidence and stimulate their interest in learning Help the adult to improve the way of thinking, adjust the state of mind, enhance the ability of understanding and reduce the pressure of work Help the old to maintain flexible fingers, active brain cells, delay brain ageing, and reduce the risk of developing alzheimer's disease
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