Special Set consisting of: 1 BPA-free 180 ml bottle with ultra soft flesh-colored teat similar to the mother's breast with the extraordinary flow adaptable to the sucking force of the newborn; 1 patented silicone anti-colic replacement bag that does not require external air to compensate for the vacuum that is produced inside so that no bubbles are created, thus avoiding the baby's gaseous colic. It also prevents the air from oxidizing the milk and destroying nutrients at the same time. Also suitable for premature babies with weak sucking force; 1 slow flow replacement teat with rounded base and angled angled helps avoid reflux and even ear infections. Recommended for mixed breastfeeding. Sterilize by microwave / steam, in boiling water for 5 minutes and cold. Do not use alcohol-containing disinfectants and aggressive solutions such as detergents and solvents. With particular care, the bottle can be heated in the microwave and in the bottle warmer.