Boon Nursh Nipples Stage 3 Three Piece Pack Nursh nipples are the Bee s knees (trust us We Checked). these nipples are modeled after MOM following the same natural form feel and function of the real thing. 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 and encourages proper tongue positioning. With 3 nifty stages to ensure your hungry baby gets the right amount of milk or formula at the right flow these 100% silicone nipples are dishwasher safe. Made to work with our reusable silicone pouch bottles air Free feeding has never been easier. - Modeled AFTER moms: designed to mimic the natural form and feel of mom for baby feeding easy to latch and encourages proper tongue positioning - Innovative design: features a gradual transition from nipple to Wide-Neck base and a soft breast-like feel for comfy feeding - Easy to clean and washable: dishwasher safe nipples can be boiled microwaved frozen and sterilized - No straws vents or valves: other bottles require vents and valves that allow air back into the bottle - Safe silicone: Made without PVC or Bpa milk only touches silicone nipple and pouch - - - 2.39 ounces 2.75 x 2.75 x 2 inches