NURSH Nipples are modeled after the breast.  They were designed to have the same shapre,  form, and feel!  Because they mimic breastfeeding, bottle preference and rejection as well as nipple confusion are greatly reduced. The gradual transition from nipple to wide-neck base makes them easy to latch, encourages proper tongue positioning, and helps to promote dental and oral development. With 3  stages to ensure your hungry baby gets the right amount of milk or formula at the right flow. Made to work with our Reusable Silicone Pouch Bottles, air-free feeding has never been easier.