- Good for creative thinking & improve both your IQ & EQ
- New challenge for the people who like to play puzzles toy
- You can compete with your friends to solve all for a dinner
- Hints: Take a Break & Retry it
- IQ puzzles also can cultivate your perseverance and patience
- An all-time favorite for young and old
- Functions: decoration, brain training, home and office fun
- Package includes: 20 sets