I recently purchased the Hegen Newborn Bottle set and am very happy with it. The set includes two 5oz bottles which are perfect for newborns up to 3 months old. It also comes with additional medium flow teats, allowing mothers to easily switch as the baby grows and feeding needs change. I especially like the storage lids included which let you convert the bottles into storage containers-very practical and convenient. Overall, it's a great buy as the set is versatile and can be used from newborn stage through the baby's growth.