Physiological nipple that helps the tongue to remain in the same natural position as when the baby suckles at the breast. It is designed taking into account the oral and dental particularities of the baby, who is developing his maxilla and mandible, without interfering with this development. Thus, it helps to leave more space in the oral cavity so that sucking is as natural as possible, thanks to its 20mm neck that reaches the junction of the hard palate with the white palate. It has an anti-colic valve and a slightly curved concave base to facilitate its adaptability. It is made of soft, fine silicone with a sandblasted finish, which helps to mimic the texture and consistency of the mother's nipple. For dense flow: helps pass very liquid porridge, making it ideal for older babies or big eaters. Suitable for all Suavinex bottles, except the Zero.ZeroTM bottle.