Nubby Non-Drip Standard Neck Bottle made from BPA FREE durable, break-resistant plastic. Can be boiled, top-rack dishwasher safe, microwave steam sterilizer safe. Graduated in both ounces and ml. An anti-colic nipple helps to prevent ingestion of air by baby, which may cause colic. Nubby has taken this one step further by adding the Nubby nipple with raised offset surfaces that assist in the eruption of teeth by gently massaging infant’s gums. The first and only Non-Drip nipple is uniquely designed to prevent drips and spills. With a pressure-sensitive valve feature safely built right into the nipple, fluid only flows out of nipple with sucking actions of the baby. This special valve closes when sucking action ceases, ensuring a leak-resistant bottle. Pack contains 3 bottles. Capacity: 240 ml.