About This

• 4-in-1 ADVANCED metal brain teasers puzzles,gives you more challenge and fun
• Very nice for Advent Calendar Chistmas gift,party games,parent-child family games office toys for relax and killing time
• Good for creative thinking and improve both your IQ & EQ , bring you working Inspiration
• Metal brain teasers condenses with traditional Chinese culture and quite interesting
• TIPS: please DO NOT refer to the "Challenge Guide" at the very begining, the really most interesting thing is exploring it,but not the result