Design of a toy aimed at children from 4 to 7 years old and its place of use can be any since it is an object that is easy to transport and store.

It consists of a cylindrical box whose interior (which can not be seen) is divided into 4 phases or holes with different thickness, generating low or high-pitched sounds depending on the area, through which a marble must pass. The last two phases have different superficial cuts that make their passage difficult. The aim is to overcome these phases in the shortest possible time.

What makes this toy different from any other, is that it forces you to use your hearing and touch to know in which phase is the marble, that is, each phase has a different thickness and design, so to sense the progress of the game you must pay attention to the sound and also imagine and mentally create the internal plane through which the marble moves, to try to direct it towards the hole that will allow you to pass the level.

It is made entirely of wood and has not needed any other type of material for its manufacture, so it respects the sustainability with the environment. In addition, there are hardly any toys on the market that, without being musical instruments, use senses other than touch and sight, so it can be described as an innovative toy in today's market.