Avent Natural Glass Bottle Silicone for 3 Months+ this feeding bottle comes with a petal designed teat that imitates natural breastfeeding and helps your child associate breast with bottle feeding, for a smoother transition. n• Its broad design increases flexibility, thereby giving your child control over the pace at which the milk flows.n• The soft silicone nipple has a unique valve system that reduces the risk of colic by making sure the consumed food isn’t laced with air. n• The nipple is composed of soft silicone while polypropylene is used in the making of the bottles. They prevent plastic associated toxins from entering into the milkn• Ergonomically designed with a wide neck and simple to assemble parts.n• The glass baby bottle is resistant to heat and shock, enabling you to place it in the fridge, warm or sterilize it. n• The glass baby bottle with a capacity of 330ml is ideal for infants 3 month and above.