■ How to Use Target age: 2-3 months to 18 months * Sterilization or disinfection by boiling, chemical solution, or microwave is possible. * Cannot be attached to "Teteo Nursing Textbook LiCO" or "Teteo Nursing Textbook Hospital-Use Baby Bottle". ■ Ingredients Synthetic rubber (silicone rubber), polypropylene ■ Precautions for Use * Keep out of reach of children. * Do not place near fire. May deform or break. * Always attach to a baby bottle before use. There is a risk of the child swallowing it. * If any scratches or cracks appear, stop using immediately and replace with a new nipple. "Country of Origin" Japan I purchased this for my fourth child, born at the end of March 2025, but did not use it because I am breastfeeding and my baby refuses bottles. I hope someone who needs it can use it. I am a non-smoker and do not have any pets. I will fold the nipple tip and ship via Yu-Packet Post Mini.