Farlin NF-717 Feeding Bottle 90Z 717 is feeding bottle with wide neck.Narrower waist in it fits more securely in hands.The bottles are color-fully designed. Farlin Sense Developing Feeding Bottle helps to develop sense in your baby while drinking. It includes high-quality, durable silicone nipple which is similar to mother'S nipple. It can stretch to and fro according to baby'S suction motion like mother'S nipple.The lengthened air valve on base allows for constant flow of liquid and less ingestion of air, so prevents colic. Bottle neck has smooth inner surface making it easier to clean and will not retain milk and dust particles.