First Montessori mobile to be presented to the newborn. It can be used from 2 weeks old. It incorporates two-dimensional and three-dimensional shapes, in high-contrast cardboard and a transparent sphere. At birth, the newborn's vision is quite limited. Appropriate stimulation of the visual sense with Montessori mobiles strengthens eye muscles, aids the ability to visually track an object, promotes visual discrimination, and concentration. The mathematical sense is a human tendency that begins to develop even at very early ages. Exposure to mathematical concepts through the mobile's shapes stimulates familiarity with them. The high-contrast colors of the geometric shapes provide focal points for the newborn's blurred vision to acquire the ability to discriminate one object from another. It can be used from 2 weeks to approximately 6 weeks.