* NO MORE COLIC AND CRYING: thanks to the 2 side air intakes that prevent the intake of unwanted air. * NO CONFUSION: the New era bottle has been designed with the soft nipple and in symmetry with your baby's palate. Easy to heat in the microwave and in boiling water resists up to 140 degrees; does not release harmful substances when heated, 0% BPA * STOP PLASTIC BOTTLES: The New Era bottle is made of 100% safe and hygienic food-grade silicone. * SATISFIED OR REFUNDED GUARANTEE: If our products are not in line with the description, you will be refunded. EACH BOTTLE HAS A PROTECTIVE CAP.