Natural latch on with breast-shaped nipple No-drip nipple design prevents spills and lost milk Vents air away from your baby's tummy designed to reduce colic and discomfort Pharmaceutical grade glass, purity and heat resistance Simple to use, easy to clean and quick to assemble This Newborn Gift Set includes premium quality glass baby bottles. The Natural Response Nipple works with your baby's natural feeding rhythm, making it easy to combine breast feeding and bottle feeding. The nipple has a unique opening which only releases milk when the baby actively drinks. So when they pause to swallow and breathe, the milk pauses too so you can confidently avoid milk loss whether at home or on the go. The wide, soft and flexible nipple is designed to mimic the shape and feel of a breast, helping baby to latch on and feed comfortably. The Anti-colic valve is designed to keep air away from baby's tummy during feeding, to help reduce colic and discomfort. Made of premium quality borosilicate glass, the Philips Avent glass bottle is heat and thermal shock resistant. It can therefore be safely stored in the fridge, warmed, and is also suitable for sterilization. Every baby feeds differently, and develops at their own pace. We've designed a range of flow rates (0m+, 1m+, 3m+, 6m+ and 9m+), so you can find the perfect one for your baby and personalize your bottle. All of the Natural Response Nipples are made of soft silicone. Wide bottle neck makes filling and cleaning easy along with only a few parts for quick and simple assembly. Includes 5 Bottles, 2 Ultra Soft pacifiers, Milk powder dispenser and bottle brush.