The Playtex Baby Vent Air Nurser Bottles are designed to provide a comfortable feeding experience for babies as young as 3 months old. With an anti-colic nipple and variable flow rate, these wide-neck bottles feature a breast-like shape for easy transitioning from breastfeeding. Made from BPA-free plastic, these disposable bottles have a capacity of 250ml (8oz) and are suitable for nursing mothers looking for a convenient and comfortable feeding solution. The angled position of the bottles makes it easy to feed sitting up, reducing the risk of ear infections during feeding time.