Flat and symmetrical Leaves enough space for the tongue to lie in its natural position. Long neck -20mm- reaches the junction of the hard and soft palate. Slightly curved concave base ensures the correct position of the mouth, tongue and jaw muscles. Neck centred in relation to the base easiest for babies who hold the bottle on their own. Ultra-soft silicone and textured finish mimics the texture and consistency of the mothers nipple. SLOW FLOW Lets a limited flow of liquid through. Indicated for milk feeds during the first few days of life or for water later on. MEDIUM FLOW Lets all types of medium-density liquids through. Ideal for milk, juice or water. DENSE FLOW Lets very thin pures through. Ideal for older or hungry babies.