Philips Avent Natural Fast Flow is designed for babies at least 6 months old and offer a fast flow. These are made of soft, durable silicone, which is odorless, flavorless and BPA free. The can be sterilized in any Philips Avent steam sterilizer, boiled for five minutes, or washed in the dishwasher. A wide breast-shape promotes natural latch-on so you can easily combine breastfeeding and bottle feeding. Our flexible design combined with the comfort petals allow for a natural movement while baby feeds. Unique Airflex valve technology is integrated into the and are designed to reduce colic and discomfort by venting air away from your baby's tummy. Philips Avent Natural should be used with the Philips Avent Natural bottle. SCF654/43