glass feeding bottle with wide neck glass bottle, easy to clean, heat resistant.FARLIN GLASS feeding bottle is designed from the best types of child-safe and heat-resistant glass, with a wide neck that is easy to clean and sterilize without leaving any traces of milk smell, which gives the child the best ability to drink milk every time. Equipped with a super soft silicone nipple from the top and a lower softness from below to imitate the natural shape of the mother’s chest and nipple. It also contains an air valve system, which reduces air flow to the child’s stomach and prevents colic or milk reflux outside the mouth so that the child can drink milk in the most comfortable way for him.