The Dr Brown's Natural Flow Anti-Colic 2x 2oz Bottles are designed for newborn babies from 0 months old. These bottles feature a slow flow teat made of silicone in a clear, BPA-free plastic material. The bottles come in a set of 2 and are dishwasher safe for easy cleaning. The vented bottle nipple helps prevent colic, making it suitable for both boys and girls. With a capacity of 60ml/2oz each, these bottles are perfect for parents looking for a reliable and safe option for their baby's feeding needs.