The number one choice of UK Health Professionals, the enhanced design of the Dr Brown’s Options+ Anti-Colic Bottle is clinically proven to reduce windy colic due to Dr Brown’s unique 100% vacuum-free vent system. Suitable for use from birth (don't wait till your baby develops colic), these bottles offer an easy and comfortable way to feed your little-one, adapting to their needs as they grow. With the unique design, this bottle can be used with or without the removable internal vent system, transforming it into a teat-vented bottle for more convenience. The breast-like teat shape is correctly contoured for a proper latch and a more natural bottle-feeding experience - perfect for switching from breast to bottle and back again. Each teat is specially engineered to offer the same consistent natural flow, so you and baby know what to expect in every feed. The bottles also grow with baby, allowing easy removal of the vent system when baby no longer experiences feeding problems, or you want the convenience of a teat-vented bottle. The teat venting creates a controlled flow, offering babies an easy and convenient way to feed at their own pace. The Dr Brown's Options Starter Pack is a complete feeding system that provides excellent value for money. This pack includes: 2x 150ml bottles 1x 270ml bottle 3x Level 1 teats 2x Level 2 teats 2x Level 3 teats 2x Vent cleaning brushes