2m + The ergonomic, symmetrical, flat and elongated shape of Chicco's Physio silicone teat facilitates the acceptance of the baby, favoring the rhythmic movement of the tongue during feeding. 4 streams available. The Physio Chicco silicone nipple adapts perfectly to the baby's mouth and respects the natural breastfeeding movement. Made of ultra-soft silicone, the Chicco Physio teat perfectly simulates the mother's breast, offering the baby a comfortable sensation that facilitates acceptance. Thanks to its ergonomic shape, Chicco's Physio Silicone teat favors the rhythmic movement of the tongue during sucking. Available in 4 different flow variations, the Physio nipple adapts perfectly to all bottles of the PERFECT 5, Well-Being and Original Touch series. Accepted by 9 out of 10 children. Acceptance rate at ages 0-2 months: 98%