Pigeon 26010 Nursing Bottle Kp6 Std Neck 200ml is a healthy start to a baby's liberated eating habits. The bottle permits natural movement of the baby's tongue, ensuring maximum development of baby's facial and jaw muscles. It integrates a unique air ventilation system that tolerates minimum air intake and easy gliding of milk into the baby's stomach. The nipple gets perfectly fit into the baby's tongue and encourages the peristaltic motion of the tongue. It can also be adjusted to increase or decrease the flow of milk.