Extremely soft high-quality silicone nipple. • soft and familiar feel • anti-colic valve • orthodontic design use: prepare baby food as recommended by the manufacturer. carefully inspect the nipple before each use. pull the nipple in all directions and replace it immediately at the first sign of wear. if it has cracks or bite marks, sticks or changes in shape, it is an indication that pieces may come off and there is a risk of swallowing and choking! do not expose the nipple directly to the sun or other heat source and do not leave it in a sterilizing solution for longer than the recommended time. after approximately 2 months of use, replace the nipple for hygiene and safety reasons.