About This

• 4 Sets Advanced metal brain teasers puzzles,bring you more challenge fun than primary puzzles
• Very nice toy for party games,family games, office toys for relax and killing time
• Good for creative thinking and improve both IQ & EQ,anyone can pick it up and play
• Made of heavy duty metal durable for playing ;Portable,you can play it anywhere anytime
• TIPS: Please DO NOT refer to the "Challenge Guide" at the very begining, the really most interesting things is exploring,but not the result