Peristaltic Nipples Redirects Air, Keeping It Away From The Milk And Allows Baby To Drink Continuously Without Gasping For Air Or Drinking Bubbles. Insulated stainless steel flask bottle 240 ml. Best for feeding babies. Ergonomic shape, extra comfortable shape easy to hold even for baby's tiny hand. Stainless Steel And Medical Grade Silicone Bpa-Free And Will Not Leave Toxins. Natural feeding nipple. Comfort petals. 240 ml Thermos milk feeding bottle with handle.