Material: The new PE material non-toxic， tasteless， safety and environmental protection.1. To promote awareness of the color of the baby.2. train baby's ability.3. To develop your baby's senses.4. stimulate well-developed visual system.5. Promotion of the baby's brain development.6. stimulate your baby's intelligence.7. Exercise the baby's hands and feet flexibility.8. To promote the healthy growth of baby bones.