UNIQUE NIPPLE SHAPE - The natural sloped shape of the Balance Plus baby bottle is designed to engage your baby’s full mouth and provides a resting area for your baby’s lips to properly latch. This allows baby’s lips to maintain a wide latch without getting tired or slipping to the nipple tip, similar to how baby would latch at breast. | GULP-FREE FLOW RATE - The Balance Plus Wide Neck Baby Bottle is designed to have a slower, more comfortable flow ensuring a more relaxed drinking pace for baby, without the need to gulp to keep up. Great for baby's first bottle and for pumping moms alike. | NATURAL, GENTLE SLOPE - Ensuring a good fit is essential which is why Evenflo Feeding wide neck nipples were designed for a gentle, natural slope to help your baby maintain a wide latch without sliding around. | PREMIUM VENTING - Evenflo Feeding’s patented Proflo Venting Technology was developed to ensure milk bubbles stay in the bottle and not in your baby’s tummy. This gentle, 1-piece venting system helps significantly reduce the potential for colic, reflux, gas, and fussiness, keeping your baby comfortable even after they are finished eating. | JUST-RIGHT NIPPLE LENGTH - These Balance Plus silicone baby bottle nipples are just the right length to help stimulate your baby’s soft palate which triggers their natural sucking reflex without causing them to gag or choke. | Minimum Age-0 Months, Maximum Age-3 Months