Avent Philips Feeding Nipple Natural From 3 Months

"Product Description: Philips Avent natural nipples with variable flow openings are designed to reduce colic and discomfort through a dual valve that regulates air in the bottle. Made from BPA-free silicone, they offer improved flexibility and safety. These nipples feature an opening suitable for thick liquids and are compatible with all Philips Avent natural bottles. Philips Avent products are designed to meet the needs of mothers and babies at every stage of motherhood."