The MAM Easy Start Anti-Colic Bottle and Nipple Bundle is the perfect combination for feeding your little one. This bundle includes three 9 oz anti-colic bottles specially designed to reduce colic, gas and reflux in babies. The vented base releases liquid slowly and eliminates bubbles for comfortable feeding. The elongated, medium flow nipples mimic mom's breast to support easy switching between breast and bottle. These BPA-free bottles also self-sterilize in the microwave in just 3 minutes for convenience. Complementing the bottles are four BPA-free silicone nipples in slow and medium flow rates suitable for newborns and older babies. The nipples are shaped to fit perfectly into baby's mouth just like mom's breast, with 94% nipple acceptance. Their flat, symmetrical shape allows comfortable latching and drinking pace without nipple collapse. With both slow and medium flow nipples, you can easily adjust bottle feeding as baby grows. Together, these MAM bottles and nipples form a complete feeding system designed for safety, comfort and convenience. The anti-colic bottles keep feeding smooth and painless while the shaped nipples support natural feeding. With self-sterilization, these bottles also simplify on-the-go feeding. Give your little one the comfort of mom and the convenience of bottle feeding with this nurturing bundle.