The Philips AVENT Newborn Starter Set includes a collection of feeding products to get parents started with bottle feeding baby, including 4 natural bottles (2 x 4oz and 2 x 9 oz), a bottle teat brush, and a white advanced orthodontic soother 0-6 months. The new Philips AVENT Natural bottle helps to make bottle feeding more natural for baby and parent. The teat features an innovative petal design for natural latching on similar to the breast, making it easy for your baby to combine breast and bottle feeding. The natural latch on makes it easy to combine breast and bottle feeding The unique comfort petals make for an extra soft and flexible teat. The bottles feature an advanced anti-colic system with innovative twin valve design. The ergonomic shape makes it easy to hold and grip in any direction for maximum comfort.