The lock may look simple, but it surely incorporates plenty of mysteries.
Use your brain, exercise your patience, is unable to untie the knot, but so long as the master of the structure, is sure to solve.
Challenge your mind and patience.
1.Children should use it under the adult’s tutelage.
2.Don’t throw the away to one another.
3.Don’t use it if there may be any problem.
4.Don’t keep the toy within the mouth to prevent children devour small parts within the toy.
Deal with with care, keep away from desiccation, being washed.
Classical intelligence puzzle toys
Challenge your mind and test your nerve
Easy to take apart and difficult to reassemble
Made of wood, 5 pieces include
Suitable for both children and adults