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1. This is suit for both children and adult.
2. A unique and special wooden brain teaser puzzle.
3. The lock may look simple, but it contains lots of mysteries.
4. It is usually easy to take apart and difficult to reassemble.
5. Not only it can enhance your ability, and can even be an extraordinary plan!
6. This is the BEST GAME for developing intelligence and improving balance ability.
7. The ancient Chinese wisdom, old ancestral locks, you can do it in a second, others may a hour, or even a day also couldn't do it.
8. The lock became a popular toy for all, thanks to its functions of mind-body relaxing, intelligence boosting and making fingers more flexible.