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Name: metal buckle intelligence Material: high carbon steel plating + Packaging: Box Application: over 6 years Require decryption method (contact customer service), the first decryption yourself, suddenly experience the fun. Products ====== ====== Intelligence toy is old and traditional intelligence game, a long history and wins long-lasting, Has a lot of math and physics principles subtle. Even in a short time apart is difficult to fight back. Small modeling is greatly test people's IQ! Ancient wisdom, that you can do in one second thing, others perhaps an hour, Even one day can not do. Take not go into the draw, or pretend not to get into, are unqualified! If you want to play more and more, Multi-secret research which can not only enhance your ability, and can even become a superb mastermind, Hands and brain, develop your intellect and imagination!