The NUK FC + 300 ml Latex Bottle has been designed with the baby's oral development in mind and the stimulation of the jaw muscles, sucking and salivation. Unique anatomically shaped latex nipple mimics the mother's nipple and offers extra wide lip support. It does not contain harmful substances; odorless and BPA free. Wide neck for easy filling and cleaning. It includes a latex nipple with a unique anatomical shape that adapts perfectly to the jaw of the baby, 0-6 months, M (medium hole = milk) and 6-18 months, L (large hole = thick food). With improved NUK ANTI-COLIC AIR SYSTEM ventilation system that helps prevent colic. Includes screw ring, sealing disc and protective cap.