Philips AVENT SCF699/25 Natural 2 Ounce Bottle is ideal for newborns and preemies. The First Flow nipple has a slower, more controlled flow rate and the small container helps ensure the appropriate amount for baby's smaller tummy. And, it's the most natural way to bottle feed. The wide, breast-shaped nipple promotes natural latch-on so you can easily combine breastfeeding and bottle feeding. The unique comfort petals inside the nipple increase softness and flexibility without nipple collapse, while the innovative twin valve design reduces colic and discomfort. The ergonomic shape makes it comfortable for parents to hold and easy for small fingers to grasp. Assembly is simple with only a few parts and the wide bottle neck makes filling and cleaning easy. The Natural bottle is made from polypropylene, a BPA free material, and works with all nipples.