3D Giant buy Wooden Lock Toys

Size: 4.5 * 4.5 * 4.5cm
The buy block toy is simple, but it hides a lot of mysteries.
Easy Unlevel but remake up. Help improve your thinking..
Suitable for both children and adults.
Strengthen your brain, you patiently practice the thread, can't be removed, but need to grasp the structural knot, you will surely solve it.
Note:
1. Children must use the product under adult supervision.
2.Do not lose the accessories.
3. If the product has any problem, please use it.