This bundle includes two sets of Boon Nursh reusable silicone baby bottles, designed to provide a natural, air-free feeding experience for babies. The first set includes three 4-ounce bottles with stage 1 slow flow nipples, perfect for newborns. The collapsible 100% silicone pouches squeeze out air as baby drinks to reduce gas, colic, and spit up. The nipples mimic the breast to help baby latch easily. The second set contains three 8-ounce bottles with stage 2 medium flow nipples, ideal for older babies ready for a faster milk flow. The pouches and nipples provide the same air-free, natural feeding motion. Both sets are completely dishwasher safe and BPA-free. The innovative silicone pouch design means no plastic touches milk. With minimal pieces, these bottles are easy to clean and assemble. These two bottle sets work together, allowing you to transition baby from a slow flow with the 4-ounce bottles to a faster flow with the 8-ounce size as they grow. The consistent air-free feeding motion keeps baby comfortable through each stage. Explore more accessories like storage lids and extra nipples to build out your Nursh bottle system.