The lock may look simple, but it contains lots of mysteries. Easy to take apart and difficult to reassemble.
Not only it can enhance your ability, and can even be an extraordinary plan. Suit for both children and adult.
Use your brain, exercise your patience, is unable to untie the knot, but as long as the master of the structure, is sure to solve.

NOTICE:
We pays great attentions to the shopping experiences from the customers.
If you have any problems with our items or services, please feel free to contact us first.
We will do our best to solve any problems and provide you with the best customer services.

• Crafted with wood, non-toxic, lightweight, durable.
• 4 different shape Kong Ming locks
• Age 6+.Share your steps with your friends or families.
• Classical intelligence puzzle toy, Brainteaser.
• Great for building spatial skills. Fantastic gift for your favorite brainy guy or girl!

Crafted with wood, non-toxic, lightweight, durable.si ying