The 2 Dr. Brown's Natural Flow Anti-Colic Wide-Neck Glass Baby Bottle 270ml is a transparent bottle suitable from 0 months old. Made with a glass bottle and BPA-free silicone teat, this orthodontic baby bottle features a slow flow teat to reduce colic. The wide-neck design makes it easy to clean and fill, while the BPA-free materials ensure safety for your little one. With a capacity of 270ml and a unisex style, this 2-pack of bottles is a convenient and healthy choice for your baby's feeding needs.