Intellectual puzzle with 5000 permutations for age :3-108 years old. Intelligence toys, old and young safe. Junior fight smart, fight a successful middle-aged, elderly fight health. Children play with puzzles, can be trained hands, eyes and brain coordination. People often say: adults with a brain to think of the children to think about the hand. Indeed, the child can operate from a simple repeated game, through the vision, the information transmitted to the brain, so as to achieve the purpose of developing intelligence. Play with puzzles, develop intelligence, develop confidence, improve psychological quality, and create new thinking.