... and nipple are use food grade liquid silicone, not conductive to the growth of bacteria. It is BPA free, even in high ... .Durable, long-term use, soft and strong, difficult to break, only need to replace the nipple to use, can be use 3-5 years at ... feeding your baby, because the actual milk temperature is higher than feeling on outside the bottle.Please check the bottle and nipple regularly, if ...