This 3-in-1 set is designed to develop with your baby - from bottle feeding to weaning and then open cup drinking. Use as your baby grows Medical grade, long-lasting glass Naturally sustainable Breast-like shaped nipple Self-sterilizes in three minutes in the microwave* 100% leakproof with the lid (even when it’s turned upside down) What's included: 3 x 9oz Self-Sterilizing Glass Baby Bottles, 3 x travel food jar lids, 3 x cup rings to use as your baby grows *Based on placing one bottle in microwaves from 700-1000w. Grows with baby: With three 9oz Natural Start glass bottles, three travel food jar lids and three cup rings to see you through from bottle feeding to weaning and then open cup drinking Naturally sustainable glass: Made from durable, medical-grade glass that’s long-lasting, stain resistant and free from BPA, phthalates and toxins Natural latch: Our baby bottle nipples are shaped to encourage a natural latch, reducing air intake and preventing nipple confusion when switching between breast, bottle and back again Pace feeding: The soft silicone nipple flexes and stretches like a breast and allows your baby to feed comfortably at their own pace Self-sterilizing: Tommee Tippee Natural Start bottles can be easily self-sterilized in the microwave in just three minutes" Tommee Tippee SKU: 549508