1. Intelligence toys for solving problems: such as nine linked rings, Kong Ming rings, nine linked rings, note rings, plum blossom rings, horseshoe locks, five knot whips, curtain rings, corn nine linked rings, snake shaped nine linked rings, horseshoe nine linked rings, tripod rings, etc.
2. Fun puzzle toys: Fun puzzle toys do not require too much mental effort, but are just mood regulating puzzle toys, such as draw sticks, spring tools, chess tools, etc.
3. Intelligence toys for war chess, such as checkers, military chess, etc.
4. Test type intelligence toys: puzzle toys with test properties, such as magic boxes, rings, puzzles, etc.
5. Puzzle toys: such as puzzles and building blocks.