Animal shape food grade Silicone and wood BPA and phthalate Free ring teether for babies 6+ months. Baby tested to ensure easy grip, soft on sensitive baby gum and soothing for teething pain. Designed for small hands to inspire curiosity and improve motor and sensory skills. Easy clean with high temperature sterilization. Precautions: Sterilize by high-temperature water. For first use Sterilize by boiling water, but not by ultraviolet light Do not use acid-base detergent to clean, which will cause product damage. Keep away from sharp objects to prevent damage, please replace in time if a puncture occurs in the silicone. Keep away from high temperature fire sources.