Beautiful handmade Montessori mobiles from Etsy! In perfect, like-new condition. There are 4 different types of Montessori mobiles; The Munari, The Octahedron, The Gobbi, and The Dancers. Each one of these mobiles allows for your infant to work on and begin to develop their concentration. The Munari Mobile is ideal for a baby approximately 3-6 weeks old. The Octahedron Mobile foe age 1-3 months. The Gobbi mobile from 2-4 months. The dancers mobile 3-6+ months