The Junior Macare Natural Feeding Bottle is an anti-colic bottle that aids breast and bottle feeding; the baby suckles on the teat in exactly the same way as they do on the breast. That means they feed at their own pace and you can combine breast and bottle feeding without the risk of your little one suffering from nipple confusion. They develop their jaw muscles correctly; essential for proper dental and speech development as well as the ability to chew correctly as they grow. It is very effective in the fight against colic because even the smallest air bubbles are removed from the milk. The Junior Macare Natural Feeding Bottle is very easy to clean, assemble and use.