Lansinoh mOmma Bottle Kit with Nipples Lansinoh mOmma Bottle Kit with Nipples is patented with 50 years of research - so you can give your baby your precious breastmilk while you are away, but have the confidence that your baby will return to your breast when you get home. Lansinoh mOmma Bottle Kit with Nipples includes: 2 Feeding Bottles (5oz/150ml) 2 Feeding Bottles (8.4oz/250ml) 2 Slow-Flow NaturalWave Peristaltic Nipples 2 Medium-Flow NaturalWave Peristaltic Nipples 2 Fast-Flow NaturalWave Peristaltic Nipples 1 mOmma Cleaning Brush Lansinoh mOmma Feeding Bottle with NaturalWave Nipple features: New Lansinoh mOmma Bottle: Clinically proven to help maintain established breastfeeding patterns. Nipple Tip: Controls milk flow and is available in slow, medium, and fast flow to meet your baby's changing needs. Nipple Design: One-piece, hassle free. Promotes oral, facial, and jaw development. Allows baby to mimic natural sucking rhythm. Wide Nipple Base: Encourages wider latch-on, similar to baby's natural latch. 100% Silicone: BPA free. Super soft and flexible, designed for optimal compression. Long lasting clear material. AVS Air Ventilation System: Reduces intake of gas, a potential cause of colic or spit up Wide Bottle: Easy to pour into, easy to clean. Round Bottle: Easy and comfortable for baby to hold. Polypropylene bottle, safe for breastmilk storage, BPA free. Protective Cover: Leak-free and hygienic while on the go. Interchangeable with mOmma Non-Spill and Straw cup lids: Grows with your baby and provides extended value. Frequently Asked Questions What research does Lansinoh have to support this nipple?The Lansinoh mOmma NaturalWave Peristaltic Nipple is substantiated through over 50 years of research that shows that when baby's use it, they are utilizing the same actions they use when nursing naturally. Lansinoh has done additional research out of the UK that underscores the importance of this nipple for a breastfed baby.