Hi!I am a 23 year old mother of two beautiful children, a son that is two and a daughter who is eight months and i love the Munchkin Glass Bottles. These bottles work really great and they are easy to clean. I used them when my daughter was a newborn until about six months old. She is almost off the bottle now. I loved how the Munchkin Glass Bottles don't have any harsh chemicals in them that can harm a child and last a long time. They also have a textured grip on each side of the bottle and helps with learning how to hold the bottles on their own. I also used the Munchkin Glass Bottles with...