★I made this mobile with three different sizes octahedron , Blue-5cm,yellow-4cm,red-2cm,★Bright and glowing can catch a baby’s attention more easily. ★The two knots of the string attached to the white ring can adjust the length.So you can easily adjust the distance between the octahedral and the baby. ★Made with the trunnion raw untreated wood, cardstock, Oeko Tex certified yarn and non-toxic glue. ★The octahedra mobile is the second mobile in the Visual stimulation of the baby. Its geometric shapes have been selected to prepare for the development of understanding three dimensions, geometric shapes and their relationships.★Around 5/8 weeks – child begins to discriminate against the white and black colors. ★Mobiles should be securely fastened and out of reach of children. ★If you want to customize any color and size, please let me know your idea.★★ Transportation information: United States:General 8 – 15 days can be reach. Other countries:General 15 – 25 days to reach. ★★If encounter bad weather or holidays, your package may be delayed arrival.