The Avent Pack Natural Response Bottles 0-6M Scd838/11 is a set of bottles designed for babies from 0-6 months. These bottles are made of high quality materials and have an ergonomic design that makes feeding easier. In addition, they are equipped with a slow-flow teat that mimics the shape and feel of the breast, helping to avoid nipple confusion and easing the transition from breast to bottle. These bottles also feature an anti-colic system that reduces air intake and helps prevent colic. In short, the Avent Pack Natural Response Bottles 0-6M Scd838/11 is a product designed to make feeding easier for babies and promote their well-being.