Food Grade ABS & Silicone Material -- No BPA. It is hard enough, not afraid of baby breaking. No burrs and corners. Take care of your baby's skin. Every design is only for the safety of the baby. Exercise hand movements. Grasping, pressing, and other actions during the playing process help to improve the baby's hand-eye coordination. Multifunction -- This toy can attract baby's attention, encourage their motor skills, sensory exploration and learning. It is soft and safe to bite and can be used as teether to relieve discomfort during teething. Emotional Soothing -- The soft silicone bubbles that are easily pushed over and over again, which can stimulate the baby's curiosity and desire to discover, and relieve the baby's anxiety. Color & Size Recognition -- This product has 9 colorful silicone bubbles with different patterns, which can help babies count, recognize colors and recognize patterns.