Philips AVENT BPA-Free 9-Ounce Natural Feeding Bottles with slow-flow nipples promote the health and comfort of your baby. Whether you are breastfeeding, bottle feeding, or combining the two, these AVENT feeding bottles support your choices. Developed using extensive research and clinical trials, these BPA-free bottles are proven to reduce fussiness and colic. Designed for infants older than one month--but suitable for breastfed babies of all ages--the bottles each have a 9-ounce capacity and an extra-soft silicone slow-flow nipple with two holes, making them ideal for medium-sized feedings Clinically proven to reduce fussiness, especially during night time Easy to combine breast and bottle feeding Wide bottle shape for easy filling and cleaning Accurate feeding measurement markings on bottle Dishwasher and microwave safe